Author Topic: El Hierro  (Read 703721 times)

Offline jand

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Re: El Hierro
« Reply #5430 on: June 11, 2019, 09:42:13 am »
A statement courtesy of Enrique.

"That we would like to know, because nobody says anything ...

Volcanoes and Science Today - Volcanoes and Science Today.
Volcanoes and Science Today - Volcanoes and Science Today. I was doing a small analysis of the seismicity located in both organisms, the IGN and INVOLCAN ... the truth is that I do not really like what I found. I share with you the different things without answer:

1.- In the area of ​​Vilaflor, the IG N locates many earthquakes, which does not locate the IGN in that area, but it seems that it does so in the aric zone (yellow circles)

2 .- Two isolated earthquakes in the north (red and green circles) indicate the same, but with variations in the position.

3.- In the valley of Güimar INVOLCAN marks 4 earthquakes in a disposition that has the IGN in the area of ​​Arico (blue circles) and I do not know if they are the same or that, but if they are, Houston, we have a problem, each organism detects something different about 20 km away.

4.- The swarm in the area of ​​the boiler, with a different morphology in the distribution of earthquakes, but more or less coincide (violet circles)

5.- And the swarm in front of the Güimar Valley of the IGN, is not in INVOLCAN , but farther south ... (brown circles)
Many differences, too many of an information or a photo that should be the same or similar. Which one is the best. Difficult to tell the truth at sight of the information, but the IGN's asymmetric zone in the Güimar Valley is not very credible, while the few Involcan earthquakes in Vilaflor de Involcan, either.

I mean, I finish in a tie, I can not trust 100% of any. There is one, but I think the IGN's equipment is better in Vilaflor, while the Involcan's is better in the central building area, which would explain the matter a bit. (Enrique)"

https://scontent-lhr3-1.xx.fbcdn.net/v/t1.0-9/62229871_779990672398902_3826640733444505600_n.png?_nc_cat=103&_nc_ht=scontent-lhr3-1.xx&oh=8adcc3feddfc729a24299f6942a9e512&oe=5D7C5871

Offline jand

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Re: El Hierro
« Reply #5431 on: June 11, 2019, 16:30:34 pm »
Translated.

These are the most watched volcanoes in the world

El Teide, in Tenerife, is among the four most dangerous volcanoes in Europe

Araceli Acosta
@Araceli_Acosta_
Madrid
Updated:
11/29/2017 2:22 PM
4
There are no active volcanoes , dormant, latent ... Experts agree that up to 100,000 years a minimum surveillance system must be maintained and when the slightest signal is detected, reinforce the instrumentation and dedicate personnel to the monitoring of that volcano. Therefore, what we can talk about is volcanoes that must be watched, because they are explosive and have a population nearby .

The Aguung volcano, which these days keeps the Indonesian island of Bali on alert is one of them, although Ramón Ortiz, volcanologist of the CSIC, highlights others to take into account: the Vesuvius and Campi Flegrei (Italy), Santorini (Greece) and Teide (Spain) in Europe; in Asia, in addition to Aguung , Merapi and Tambora , also in Indonesia; the Mount Rainier and Yellowstone in the United States; El Chichón (Mexico) and Calbuco (Chile), in America, and in Africa, Nyamuragira and Nyiragongo (Congo). Let's take a look at some of them:

Indonesian volcanoes
There are three volcanoes that can be dangerous, Aguung, Merapi and Tambora, because they are very close to important populations. For Ortiz, the eruption of Aguung will mediate for , and recognizes that Indonesia is very prepared, because indeed learned their lesson with the previous eruption of Aguung in 1963, when warning the population came when it was too late and 1,500 people died . Although the real danger , says this volcanologist, is the Merapi, because it is next to the populous Jakarta .

https://www.abc.es/sociedad/abci-estos-volcanes-mas-vigilar-mundo-201711282209_noticia.html?fbclid=IwAR1OuzZSPZ8oqcA9nH7pWK4So2nOvttHvNXxxamCBUG6P9ed-qFZ1HeIFiw

Offline jand

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Re: El Hierro
« Reply #5432 on: June 11, 2019, 21:23:20 pm »
This has just been posted on the  facebook page Volcanes y Ciencia Hoy - Volcanoes and Science Today.

Yony Torres

"Doy fe de que está el sistema volcánico de Gran Canaria está activo. No es normal lo que se nota aquí. Desde octubre no paran de notarse zumbidos en los oídos presión y ondulaciones como ir en un gran barco en alta mar. Si fuera sólo yo sería algún tipo de enfermedad. Pero que se oigan los perros ladrar y llorar, que se asusten los pájaros en las jaulas, y aparezcan todos en el suelo o estampados de madrugada a oscuras. Después el comportamiento de la gente. Aquí cuando está suave la gente está en la calle hasta las 2 y las 3 de la mañana cuando está fuerte en cuanto oscurece desaparece todo el mundo y no escuchas a nadie. Un viernes a las 7 de la tarde no escuchar a nadie es cualquier cosa menos normal."


Translated.

"I give faith that the volcanic system of Gran Canaria is active. It's not normal what you notice here. Since October they do not stop noticing buzzing in the ears pressure and undulations like going on a big boat on the high seas. If it were only I would be some kind of disease. But let the dogs bark and cry, let the birds be scared in the cages, and appear all on the ground or prints from dawn to dark. After the behavior of the people. Here when it's soft people are on the street until 2 AND 3 in the morning when it's strong as soon as it darkens disappears everyone and you don't listen to anyone. A Friday at 7 pm don't listen to anyone is anything less normal."

Offline jand

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Re: El Hierro
« Reply #5433 on: June 12, 2019, 21:31:59 pm »

Latest update courtesy of Enrique.

"DERRUMBES, DESPRENDIMIENTOS Y CAÍDA DE ROCAS EN ISLAS VOLCÁNICAS, PUERTO DE NAOS, LA PALMA, CANARIAS, ESPAÑA.- La caida de rocas y bloques es un fenómeno más habitual de lo que pensamos en las islas volcánicas, pero por las barrancas, las fugas, los canales, las grietas o las zonas de caída de rocas habituales en los grandes escarpes de las islas son bastante comunes y activos, especialmente cuando hay sismicidad. Este corresponde al pasado 8 de Junio y está compartido en facebook por Fran Garlaz. Bonitas imágenes, que lo disfruten. (Enrique)"

Translated.

"Landslides, landslides and fall of rocks in volcanic islands, port of naos, LA Palma, Canary Islands, Spain.- the fall of rocks and blocks is a more common phenomenon than we think of the volcanic islands, but by the canyons, the Leaks, channels, cracks or areas of fall of usual rocks in the large islands of the islands are quite common and active, especially when there is seismicity. This corresponds to the past June 8 and is shared on Facebook by Fran Garlaz. Nice images, enjoy it. (Enrique)"



https://www.facebook.com/fran.garlaz/videos/pcb.2196904200422614/2196899413756426/?type=3&theater

Offline jand

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Re: El Hierro
« Reply #5434 on: June 14, 2019, 07:50:55 am »
Latest update courtesy of Enrique.

Translated.

" Seismic-Volcanic Swarms, one in the volcano of the middle and seismicity in the center of Tenerife. Studies on eruptions in Tenerife, Canary Islands, Spain.- yesterday and last midnight we have had several seismic events in the area of the volcano in the middle of what looks like a seismic swarm in that area and some more localized earthquakes and micro-seismic in the area of The Caldera and the south dorsal in the central area of the island of Tenerife. And I don't say anything about the non-localized, like those of this afternoon, although i have to highlight that every time they are located more.

https://scontent-lhr3-1.xx.fbcdn.net/v/t1.0-9/62472150_782278568836779_7750613642088808448_n.png?_nc_cat=111&_nc_ht=scontent-lhr3-1.xx&oh=97bf90f37da571a90ce31949356678f9&oe=5D7B756B

This noon you see some more, from which only one has been located in the area of the south dorsal with a lot of signal at low frequencies and a way that although it does not look very well reminds us of volcano-tectonic events, more known as hybrid events .

Es2019hbcai 13/06/2019 12:05:05 28.1550 16.6676 7.1 km m 1.0 mblg w vilaflor of chasna. Itf

In 2006 I remember that I was diving to see beyond, more known eruptions in Tenerife, and I remember that I take many more, especially from scientific studies, to which I have added all the described, even the dubious, is a principle to throw And that I share with you, since this does not come out in any spanish site, it is scientific diving at its highest level. (Enrique)"

- 1909 Nov 18: NW rift zone (Chinyero), Volcanic Explosivity Index (VEI): 2, Lava Volume: 1.1x10^7 m3
- 1798 Jun 9: SW flank of Pico Viejo (Chahorra), Volcanic Explosivity Index (VEI): 3, Lava Volume: 3.0x10^7 m3
- 1706 May 5: NW rift zone (Garachico), Volcanic Explosivity Index (VEI): 2, Lava Volume: 5.5x10^7 m3
- 1704 Dec 31: nw rift zone (seven sources, fasnia, güímar), volcanic explosivity index (see): 2, lava volume: 3.6 X10^ 7 M3
- 1492 Aug 24 (on or before), NW rift zone (Montaña Boca Cangrejo), Lava Volume: 3.0x10^7 m3

So far the recognized historical, with some more uncertain, although some seem to soon pass to the list of certain.

- 1444 (uncertain), pico del teide
- 1430 Fisural 4.5 km valley of la orotava, which is increasingly clear for all the written references that are appearing, both from guanches and others.
- 1396 ± 3 years (uncertain), described by sailors sailors. Central vent eruption
- 1341 (uncertain), described by sailors vizcaya central vent eruption

And from here, lava washes in studies and other scientific publications, almost nothing, there's a lot.

- 1060 ± 100 years, nw rift zone (broken mountain), lava volume: 1.3 X10^ 8 M3
- 800 AD ± 150 years, Pico de Tiede, Volcanic Explosivity Index (VEI): ?, Lava Volume: 6.6x10^8 m3
- 700 ad (? ), ne rift zone (Volcano Black), lava volume: 2 X10^ 6 M3
- 240 ad ± 150 years, nw flank of Pico Viejo (White Roques)
- 190 ad (? ), nw rift zone (Black caves), lava volume: 5.5 X10^ 7 M3
- 90 AD ± 75 years, NW rift zone (Los Hornitos), Lava Volume: 1.7x10^7 m3
- 40 ad (? ) Teide-Pico old complex
- 30 ad ± 150 years, nw flank of Pico Viejo (White Roques), lava volume: 1.4 X10^ 9 M3
- 80 BC ± 40 years, Montaña Blanca, Pico Viejo, Lava Volume: 4.7x10^7 m3, Tephra Volume: 8.2x10^8 m3
- 520 BC (? ), Teide-Pico old complex
- 580 bc ± 200, nw flank of teide (the anchovy), lava volume: 6.5 X10^ 7 M3
- 670 bc ± 200 years, nw rift zone (blind volcano), lava volume: 7.8 X10^ 7 M3
- 1050 BC (? ), nw rift zone (Mountain of rubble), lava volume: 1.4 X10^ 8 M3
- 1150 BC (? ), teide sw flank (the twins), lava volume: 4 X10^ 6 M3
- 1400 BC (?), NW rift zone (Montaña Samara), Lava Volume: 1.1x10^7 m3
- 1650 BC (? ), teide sw flank (the stain stain), lava volume: 1.0 X10^ 7 M3
- 1700 BC (? ), nw rift zone (Mountain Mountain), lava volume: 5.3 X10^ 7 M3
- 1980 bc ± 200 years, nw rift zone (Mountain of cho)
- 2250 BC (? ), teide is flank (Mountain Mountain), lava volume: 7.5 X10^ 7 M3
- 2300 BC (? ) nw rift zone (Tea Cross Mountain)
- 2650 BC (? ), nw rift zone (Black Montañetas), lava volume: 6 X10^ 5 M3
- 2850 BC (? ), teide is flank (Mountain of the cross), lava volume: 1.5 X10^ 8 M3
- 3050 BC (? ), nw rift zone (montaña bilma), lava volume: 3.0 Fuel 7 M3
- 3450 BC (? ), nw rift zone (Cross Mountain), lava volume: 1.8 X10^ 7 M3
- 3540 BC ± 150 years, Teide NE flank (lower Montaña Abejera), Lava Volume: 1.4x10^8 m3
- 3750 BC (? ), nw rift zone (Mountain of the estrucho)
- 3960 BC ± 300 years, Teide NE flank (upper Montaña Abejera), Lava Volume: 5.0x10^8 m3
- 4200 bc ± 100 years, nw rift zone (Mouse Cave Mountain), lava volume: 7.5 X10^ 7 M3
- 4650 BC (? ), teide ne flank (mountains of the corrales)
- 5250 BC (? ), teide and flank (Mountain of the corrales), lava volume: 1.5 X10^ 7 M3
- 5550 bc ± 1000 years, teide n flank (Pico Goats)
- 5750 BC (? ), teide ne flank (mountains of rabbits), lava volume: 2.5 X10^ 8 M3
- 6200 BC ± 75 years, NW rift zone (Montaña Liferfe), Lava Volume: 4.6x10^7 m3
- 6550 BC (? ), teide ne flank (Mountain of the abrunco)
- 6850 BC (? ), nw rift zone (Mountain Mountain)
- 7260 bc ± 200 years, ne flank (Mountain Black-the screws)
- 7550 BC (? ), nw rift zone (Black mountains), lava volume: 2.5 X10^ 7 M3

Data Search Site: Smithsonian Museum.
https://volcano.si.edu/volcano.cfm?vn=383030

Types of earthquakes: LP, hybrids and more..
https://previa.uclm.es/profesorado/egcardenas/SISMICIDAD_VOLCANICA[1].pdf
« Last Edit: June 14, 2019, 07:53:59 am by jand »

Offline jand

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Re: El Hierro
« Reply #5435 on: June 14, 2019, 07:57:20 am »

Offline jand

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Re: El Hierro
« Reply #5436 on: June 14, 2019, 08:06:37 am »
1798 ERUPTION OF TEIDE .

Courtesy of Carlos Cólogan.

Translated.

It was June 9, 1798, the island of Tenerife remained calm, the summer began and the people of the island were preparing for their parties. It was hot but the breeze of the trade winds cooled the atmosphere. In the early afternoon there was a horrendous roar and the earth shook. The inhabitants of Valle de la Orotava were startled, because they were not able to see what happened. A few hours later, with the night already well entered, one could see on the teide a faint red light that at times shone accompanied by frightful roars that alarmed the population of the island.
In his house in Puerto de la Cruz the young Bernardo Cólogan sensed that the volcano had awakened. That was not good news for anyone except for the science lovers among whom he was. It was his opportunity.


http://3.bp.blogspot.com/-YM8-wUlqV3U/TeLOlllNfBI/AAAAAAAAAFY/kJK5tAzZS6Y/s400/DSC_2163_873.JPG

Determined not to miss the opportunity, in several hours he gathered the necessary equipment for a long walk to Mount Teide. The tour had already been done in previous years and it was not complicated, he knew the routes and the shortcuts, but this time it would not be for pleasure.
Tomás his father did not see with good eyes those scornful explorer who permanently assaulted his son, and less after what happened in Garachico in 1706 when another volcano devastated that city, something that his own grandfather, the old don Bernardo Valois could see with your own eyes. Tomás, although he did not live it or knew his grandfather, he remembered hearing his father Juan tell how the lava scorched everything in its path, houses, granaries, churches and even people. It was a total disaster and I was afraid that the island would be devastated and with them its flourishing commerce businesses.

http://1.bp.blogspot.com/-0iXs74Mw6cM/TeLQO25GbBI/AAAAAAAAAFg/6zPIG617GKM/s400/Erupcion+Garachico.jpg

Note: It is a free version of the anonymous painting attributed to a Garachico friar that, according to legend, he carried out while fleeing by sea. You can see the natural cove that allowed the refuge of the boats of the strong sea of ​​the north of the island and that was completely destroyed by a lava tongue .
But the fear of childhood did not reach its adolescence and, that could prevent a 26-year-old young man hungry for experiences, to climb to see the eruption of a volcano !. Impossible. Furthermore, that was something never seen in the European continent and for which many of the great explorers of those countries would have given their lives just to be present.
No, he had already decided that he would come immediately. With the help of some mules, and two assistants, they loaded water, food, clothes for the cold of the mountain and their notebooks where he expected to take notes of the event.
It was night and when we reached the Caldera del Teide, the darkness was total, only thanks to the moon could you walk without falling down. Without paths but the intuition of where he was going, they walked around crags, devilish malpays that ripped the clothes and the flesh until they reached the foot of Mount Teide.
But I could not see anything but an incessant bellow, tremors of earth and the red of hell rising behind the profile of the mountain. Where was the rash? They followed the walk, something already exhausted and in a clearing of the land after the Roques de García could see what was happening, it was the old peak that was crumbling by several points. Lava flowed out of its slope, and it flowed steadily but punctuated by detonations and frightful blows.
But let it be the one who tells it:
http://4.bp.blogspot.com/-YPzThvyTVUU/TeLO-656qlI/AAAAAAAAAFc/j-e0edEirSY/s400/erupcion.jpg

Towards ten o'clock on the night of June 9, 1798, the populations of the southern band of Tenerife, and especially the part of Guia y Chío, the closest to the Canadas, there was a loud detonation and it was observed that the mountain of Chahorra, contiguous to the Pico de Teide, threw flames and volcanic materials. These eruptions lasted, accompanied by a noise that spread the horror on the entire island, for three days. In a very short time another crater opened at the top of the mountain a mile from the first, weakening the action of the latter, which also vomited torrents of lava. A third distant from this crater, whose explosions followed one another very quickly. Finally, a fourth crack let loose whirlwinds of smoke and burning stones. This eruption produced the four cones that are seen today and visited by Mr.



The four cones are placed on a slope so fast that the first seems very high relative to those below. The main stream emerged from the third cone, whose walls are still covered with crystallized sulfur. The lava has flowed in the Cañadas enclosure and has extended to the base of "Los Roques": its characters are those of a basilite mixed with crystals of rhyakolite and black Stony waste matter separated from metals during the smelting or refining of ore with metallic reflection.

All these different vents were opened successively during the first seven days of the catastrophe. From a relation of the phenomenon made by Bernardo, eyewitness to it, we take the description:
The detonations of the volcano are of different natures: some resemble the boom of thunder, others the noise of a great mass boiling in an immense caldera, supposing that it is possible to form an idea of ​​a boiler of similar dimensions. Now the explosion is sudden, as fast as a continuous and very heavy artillery discharge; Now he imitates, until the mistake is made, the whistle and the special noise of the bomb. The detonation is always heard before the explosion. The torrents of lava that have arisen from the various craters have formed, in certain places, sets of stones of matter of more than twenty feet of elevation, and even when these massifs are not inflamed in the most distant points of the mouths that the they vomited, not for that reason they stop gaining ground.


http://3.bp.blogspot.com/-CWjv0Dign38/TeLYZXIkZqI/AAAAAAAAAFk/qsuq_xXVL4U/s400/DSC_2148_858.JPG

MAY
29
1798. Eruption in the noses of Teide !.
It was June 9, 1798, the island of Tenerife remained calm, the summer began and the people of the island were preparing for their parties. It was hot but the breeze of the trade winds cooled the atmosphere. In the early afternoon there was a horrendous roar and the earth shook. The inhabitants of Valle de la Orotava were startled, because they were not able to see what happened. A few hours later, with the night already well entered, one could see on the teide a faint red light that at times shone accompanied by frightful roars that alarmed the population of the island.
In his house in Puerto de la Cruz the young Bernardo Cólogan sensed that the volcano had awakened. That was not good news for anyone except for the science lovers among whom he was. It was his opportunity.


El Teide in May 2011 with the tajinaste flowered

Determined not to miss the opportunity, in several hours he gathered the necessary equipment for a long walk to Mount Teide. The tour had already been done in previous years and it was not complicated, he knew the routes and the shortcuts, but this time it would not be for pleasure.
Tomás his father did not see with good eyes those scornful explorer who permanently assaulted his son, and less after what happened in Garachico in 1706 when another volcano devastated that city, something that his own grandfather, the old don Bernardo Valois could see with your own eyes. Tomás, although he did not live it or knew his grandfather, he remembered hearing his father Juan tell how the lava scorched everything in its path, houses, granaries, churches and even people. It was a total disaster and I was afraid that the island would be devastated and with them its flourishing commerce businesses.

Oil from the eruption of the Garachico volcano by Ubaldo Bordanova.
 
Note: It is a free version of the anonymous painting attributed to a Garachico friar that, according to legend, he carried out while fleeing by sea. You can see the natural cove that allowed the refuge of the boats of the strong sea of ​​the north of the island and that was completely destroyed by a lava tongue .
But the fear of childhood did not reach its adolescence and, that could prevent a 26-year-old young man hungry for experiences, to climb to see the eruption of a volcano !. Impossible. Furthermore, that was something never seen in the European continent and for which many of the great explorers of those countries would have given their lives just to be present.
No, he had already decided that he would come immediately. With the help of some mules, and two assistants, they loaded water, food, clothes for the cold of the mountain and their notebooks where he expected to take notes of the event.
It was night and when we reached the Caldera del Teide, the darkness was total, only thanks to the moon could you walk without falling down. Without paths but the intuition of where he was going, they walked around crags, devilish malpays that ripped the clothes and the flesh until they reached the foot of Mount Teide.
But I could not see anything but an incessant bellow, tremors of earth and the red of hell rising behind the profile of the mountain. Where was the rash? They followed the walk, something already exhausted and in a clearing of the land after the Roques de García could see what was happening, it was the old peak that was crumbling by several points. Lava flowed out of its slope, and it flowed steadily but punctuated by detonations and frightful blows.
But let it be the one who tells it:

Towards ten o'clock on the night of June 9, 1798, the populations of the southern band of Tenerife, and especially the part of Guia y Chío, the closest to the Canadas, there was a loud detonation and it was observed that the mountain of Chahorra, contiguous to the Pico de Teide, threw flames and volcanic materials. These eruptions lasted, accompanied by a noise that spread the horror on the entire island, for three days. In a very short time another crater opened at the top of the mountain a mile from the first, weakening the action of the latter, which also vomited torrents of lava. A third distant from this crater, whose explosions followed one another very quickly. Finally, a fourth crack let loose whirlwinds of smoke and burning stones. This eruption produced the four cones that are seen today and visited by Mr.


El Teide, Tenerife, Canary Islands
The four cones are placed on a slope so fast that the first seems very high relative to those below. The main stream emerged from the third cone, whose walls are still covered with crystallized sulfur. The lava has flowed in the Cañadas enclosure and has extended to the base of "Los Roques": its characters are those of a basilite mixed with crystals of rhyakolite and black Stony waste matter separated from metals during the smelting or refining of ore with metallic reflection.

All these different vents were opened successively during the first seven days of the catastrophe. From a relation of the phenomenon made by Bernardo, eyewitness to it, we take the description:
The detonations of the volcano are of different natures: some resemble the boom of thunder, others the noise of a great mass boiling in an immense caldera, supposing that it is possible to form an idea of ​​a boiler of similar dimensions. Now the explosion is sudden, as fast as a continuous and very heavy artillery discharge; Now he imitates, until the mistake is made, the whistle and the special noise of the bomb. The detonation is always heard before the explosion. The torrents of lava that have arisen from the various craters have formed, in certain places, sets of stones of matter of more than twenty feet of elevation, and even when these massifs are not inflamed in the most distant points of the mouths that the they vomited, not for that reason they stop gaining ground.


The noses of Teide today
According to our observations, those that seemed more subdued, advance twelve feet in every two hours. These lavas barely smell any and can approach them without fear. The rocks thrown by the volcano go back to a great elevation, and the time that passes from they begin to rise until they fall, is of ten to fifteen seconds. Those that leave the top crater rise perpendicularly, while those of the others rise obliquely.
I will not try to describe this frightful eruption, that there is no painting capable of giving an exact idea of ​​it, and yet it would be impossible for the most fertile imagination to conceive such a picture, especially when in the midst of the darkness and silence of At night, you can hear the mooing of the mountain that echoes the echoes of the contours.
Then, suddenly, jets of flame come to illuminate these deserts places; scorched rocks plow through the atmosphere, collide with each other, break apart, crumble and scatter the fire in all directions.
These eruptions reproduce up to seven times per minute, and are accompanied by lava overflows. The sensations multiply in the presence of such an extraordinary spectacle and the powerful and terrible nature appears even more imposing.

http://3.bp.blogspot.com/-fcMLvzVJ4lU/TeLNKEJt8qI/AAAAAAAAAFU/I8adfZXiWDQ/s400/Chahorra.jpg

His description, later transcribed by Humboldt, happens to be one of the most precise of those collected by any eyewitness, together with another by Nicolás Segundo de Franchi. The naturalist Alejandro von Humboldt, who visited the island a year later, elaborated his description of the fact based on the stories and writings of Bernardo himself, after which he presented them to the scientific community. At the foot of the Teide's nostrils, which is what is now called the orifices caused by that eruption, there is a plaque that recalls the young Bernardo.

Carlos Cólogan
Posted 29th May 2011 by Carlos Cólogan

https://cologanvalois.blogspot.com/2011/05/erupcion-en-las-narices-del-teide-1798.html?m=1&fbclid=IwAR278ayAfHznMwvhOhr0Ve3eTiD5dVX7GSBt-ImWxgB6GCIbSTzn18mVhPA



« Last Edit: June 14, 2019, 08:08:18 am by jand »

Offline jand

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Re: El Hierro
« Reply #5437 on: June 14, 2019, 16:48:46 pm »
Latest update courtesy of Enrique.

Translated.

"Volcanic earthquake type "LP" in the central building in the center of Tenerife, Canary Islands, Spain.- the volcanic system continues to show up, at 14:28 h we have had a clear earthquake of long Period, with a great coda and to which it has been calculated an initial magnitude of 2.0 located just under the mouths of the eruption of chahorra or noses of the teide at 1 KM TO THE WSW OF PICO VIEJO at a depth of 12.8 Km in what would be the edge of the fonolítica chamber of the central building: this earthquake indicates a clear pressurization of fluids and warns us that the volcanic system starts to get fit. We will have to see how it looks when they relocalicen it and adjust its magnitude with all the data (Enrique).

https://scontent-lhr3-1.xx.fbcdn.net/v/t1.0-9/64239520_782864645444838_54037534761549824_n.png?_nc_cat=106&_nc_ht=scontent-lhr3-1.xx&oh=4ab061e38615b16d9f5ce2ef33d5760c&oe=5D9353D6




Initial:
Es2019hbodd 14/06/2019 14:28:13 28.2555 16.6810 12.8 km m 2.0 mblg ne guia de isora. Itf

In another order of things, the weekly report report has also come out that in addition to earthquakes, it indicates that co2 continues to rise, it is in an anomaly phase with more than 6 times its normal value and many earthquakes aligned in two alignments, A first line that goes from the caldera and old pico area, passing through the altos de arico, passing through the coastal zone and until reaching the volcano in the middle. The other line goes from the caldera to the south dorsal. Both alignments are cut right in the caldera (Enrique)."

Data from the phases:
https://www.ign.es/web/resources/sismologia/www/dir_images_terremotos/fases/2019/es2019hbodd.dat

Earthquake viewer in the Canary Islands:
http://www.ign.es/web/resources/volcanologia/tproximos/canarias.html#

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« Last Edit: June 14, 2019, 16:54:51 pm by jand »

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Re: El Hierro
« Reply #5440 on: June 14, 2019, 19:50:06 pm »
LP Earthquakes.


"You also get long-period (LP) earthquakes under volcanoes as bubbles form and escape from the magma during its ascent. Unlike VT earthquakes, LP earthquakes gradually begin and then fade away rather than being abrupt events. So, if a swarm of earthquakes under a volcano is a combination of VT and LP events, it is a pretty good sign that the earthquakes are being caused by magma moving into shallower parts of the volcano. However, as the magma gets closer to the surface, VT events tend to go down as LP events increase. They can also occur as hybrid (or mixed) earthquakes that have some of the VT and LP characteristics.

A third type of shaking can occur under volcanoes and that is harmonic tremor. This is small but constant shaking possibly caused by the turbulent motion of the magma in the conduit. Typically when volcanologists are watching a volcano that is restless, the onset of harmonic tremor is a good sign that an eruption is likely to occur in minutes to days.

These three types of earthquakes—VT, LP and harmonic tremors—are the clues that volcanologists use to determine if the volcano is heading towards an eruption (along with the suite of other volcano monitoring tools). All of these earthquakes can occur at a volcano that does not end up erupting, so putting all the clues together is vital for an accurate forecast. Volcanologists also use seismic information to look for eruption events like explosions and lahars (mudflows) as they can also produce their own, distinct earthquakes.


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And if that wasn't tricky enough, earthquakes can occur under volcanoes that have nothing to do with magma. Places with abundant volcanoes also tend to be riddled with faults, so earthquake swarms that are merely tectonic are common. What volcanologists look for to determine if an earthquake is potentially related to magma movement or just fault motion is if the earthquake was caused by dilation (opening) of the crust (magma movement) or some other type of motion (tectonic).

Earthquakes can also be generated in the shallow crust (a few kilometers below the surface) by hot fluids in the volcano's hydrothermal fluids. All the water that percolates through the crust over volcanoes can heat up (sometimes to the point of becoming a supercritical fluid) and as those fluids move, the accompanying change in pressure can fracture the rocks around the fluid. If you look at places where geothermal energy is being tapped or at a restless caldera like Yellowstone, earthquake swarms are common from hydrothermal fluids.

If you watch webicorders that volcanologists have installed at many volcanoes, you can see the different types of earthquakes as they occur. However, seismometers like these also pick up earthquakes that happened all over the world or even non-geologic shaking like truck, people or wind. Although it is easy to watch these near-realtime records of volcanic shaking, it takes training to interpret all those blips into a forecast for a volcano.

USGS-PNSN, MODIFIED BY ERIK KLEMETTI.
So, earthquakes are a great tool for understanding what might be going on under a volcano, both during times that it might be heading towards an eruption or periods when all is quiet. The earthquake record at Mount St. Helens in Washington shows how even during times before and after eruptions (2002-2012), the earthquakes deep under the volcano don't stop—that's because magma is always moving, cooling, degassing and recharging with new magma. Calling a volcano "dormant" is a bit of a misnomer as the only part that is quiet is the top and really, volcanoes spend most of their life not erupting. Those earthquakes remind us that volcanoes are always rumbling."

https://www.wired.com/2015/08/whats-quakes-volcano-erupts/



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Re: El Hierro
« Reply #5441 on: June 14, 2019, 19:51:10 pm »

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Re: El Hierro
« Reply #5442 on: June 14, 2019, 20:04:00 pm »

Monitoring Volcano Seismicity Provides Insight to Volcanic Structure
Moving magma and volcanic fluids trigger earthquakes.

Many processes in and around volcanoes can generate earthquakes. Most of the time, these processes are faulting and fracturing that does not lead to an eruption. However, volcanic earthquakes do occur as magma and volcanic gases rise to the surface from depth, which involves significant stress changes in the crust as the material migrates upward.

Volcano seismologists study several types of seismic events to better understand how magma and gases move towards the surface:

Volcano-tectonic (VT) earthquakes represent brittle failure of rock, the same process that occurs along purely "tectonic" faults such as the San Andreas Fault. At volcanoes, VT events can occur due to "normal" tectonic forces, changing stresses caused by moving magma, and movement of fluids through pre-existing cracks. Distinguishing between these various processes can be tricky and often requires data from other disciplines (geodesy, hydrology, gas geochemistry, and geology) to work out what's going on.
Seismogram signal examples from volcanic earthquakes: volcano tectonic (VT) Low Frequency (LF)/Deep Long-Period (DLP), hybrid (mix of VT and LF), very low frequency (VLF), and Tremor.
 (Click image to view full size.)
Seismogram signal examples from volcanic earthquakes: Volcano Tectonic (VT) Low Frequency (LF), hybrid (mix of VT and LF), Very Low Frequency (VLF), and Tremor. Volcano name/date in lower left.

Long-period (LP) or low-frequency (LF) earthquakes are caused by cracks resonating as magma and gases move toward the surface. They are often seen prior to volcanic eruptions, but their occurrence is also part of the normal background seismicity at some volcanoes and their occurrence does not necessarily indicate that an eruption is imminent. LF events can also be produced by non-magmatic processes, most notably glacier movement.
Tremor is a continuous high-amplitude seismic signal that can be caused by multiple processes, including long-lived resonance due to extended flow of magma movement through cracks, continuous occurrence of VT or LP/LF events that are so closely spaced in time that they can't be visually separated, and explosions.

Most volcano-related earthquakes are too small to feel, generally quite shallow (usually within 10 km (7 mi) of the surface), and can occur in swarms consisting of dozens to hundreds of events. Most swarms usually don't lead to eruptions, but most eruptions are preceded by swarms. Therefore, during any heightened periods of seismic activity at a volcano, seismologists work around the clock to detect subtle variations in the type, location, and intensity of seismic activity to determine whether or not an eruption may occur.


https://youtu.be/JypTLDLABzM


https://volcanoes.usgs.gov/vsc/images/image_mngr/1100-1199/img1105_450w_470h.png


https://volcanoes.usgs.gov/vhp/earthquakes.html


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Re: El Hierro
« Reply #5443 on: June 14, 2019, 20:25:03 pm »
This is a statement just posted on the Facebook Page "volcanes y ciencia hoy - volcanoes and science today".


Yony Torres

Elsa aquí en Gran Canaria también pitan los oídos, a veces es tan fuerte que tienen que hablar un poco alto para escuchar bien, se notan las ondulaciones y la gente los días que está fuerte se van pronto a las casas, a partir de las 8 de la tarde, cuando no se nota están hasta las 3 de la mañana. Pregunto por aquí un mucha gente esta pidiendo cita al otorrino. Como han alejado la estación al otro lado de isla, con todas las fallas que hay no se ven en el espectrograma. Si vas girando la cabeza localizo los puntos de donde viene. Uno hacia el de Enmedio ( centro de la isla, Teide, La Palma ) y Sureste y el otro hacia Jandia. Se oyen zumbidos a diferente frecuencia y hacia Enmedio fluctúa. Si giro la cabeza cambia el oído que lo siento, lo que indica que no soy yo.

Translated.

Yony Torres

Elsa here in Gran Canaria also beep the ears, sometimes it is so strong that they have to speak a little high to listen well, the undulations are noticed and people the days that are strong are going soon to the houses, starting at 8 In the afternoon, when you don't notice it's until 3 in the morning. I ask around here a lot of people are asking for an appointment. As the station has gone on the other side of island, with all the faults that are not seen in the spectrogram. If you're turning your head I locate the points where it comes from. One towards the middle (Center of the island, teide, LA Palma) and southeast and the other towards jandia. You hear buzzing at different frequency and towards the middle fluctuates. If I turn my head change the ear I'm sorry, which indicates that it's not me.



Yony Torres

Me acaba de vibrar el tímpano como el que sacude un trapo

I just vibrated the eardrum like the one who shakes a rag.
« Last Edit: June 14, 2019, 20:27:31 pm by jand »

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Re: El Hierro
« Reply #5444 on: June 14, 2019, 21:07:59 pm »
More comments.


Carlos Seisdedos Garcia
Carlos Seisdedos Garcia

 Yony Torres pues yo soy uno de los que va al otorrino porque me duelen los oídos de hace tiempo y noto que oigo menos, a ver si el dolor va a ser por eso, aunque es sólo uno, estoy al norte de Gran Canaria

Johny Torres for I am one of those who go to the ent because my ears hurt a long time and I notice that I hear less, to see if the pain is going to be for that, although it is only one, I am north of Gran Canaria

Keko Palma

Si, ese zumbido de oídos es como si uno tuviera mosquitos dentro del oído, a mi también me suele pasar y también mareos o vértigos espontáneo de segundos de duración..

Keko Palma

 Yes, that buzz of ears is as if one had mosquitoes inside the ear, I also usually pass and also dizziness or spontaneous dizziness of seconds of duration..

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Re: El Hierro
« Reply #5445 on: June 14, 2019, 21:50:14 pm »

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Re: El Hierro
« Reply #5446 on: June 15, 2019, 04:31:15 am »
Latest update courtesy of Enrique.

Translated.

"the volcanic system of Tenerife begins to reactivate, a seismic-volcanic swarm to the SW of Pico Viejo, Tenerife, Canary Islands.- we have been signaling signs all afternoon, the ign has located the main, but has not put The rest, you don't know why.

To Toro past now we see it, one thing is clear at mid-afternoon, about 16:40 h have started to occur many seismic events in front of our noses, which appear as many lines that are barely seen in the spectrogram and are not seen in The Seismogram and now they go out. Dozens of earthquakes and microdisks located by the ign in the area of the caldera of ucanca to the SW of pico viejo that tell us that something happens under the central building.

At the moment, 42 events have been located from 16:40 pm to 17:58 pm, including the last two strongest that have reached the magnitude 2 at depths between 10 and 15 km, with Some more shallow and some deeper right in the area of the fonolítica magma chamber that is under the central building and the caldera.

And that indicates all this, it is very clear, they are indicating a process of magma pressurization in the area. And that causes it?, it's soon, but most likely it's about contributions of new magma to the reserve of the magmatic magmatic chamber that's been there for hundreds of years under the central building from deeper levels.

The Origin of this new magma is possibly the pen that is in the mantle under the canary islands and that generates its volcanism and now flows through regional efforts that late in late "tighten the archipelago". the last two telesismos, an earthquake of 3.3 in the azores at that of 20:30 h and a 5.1 on the Atlantic Dorsal that also appears as telesismo past 21:20 h in the spectrogram:

2019-06-14 20:11:21.0 38.60 N 29.13 W 5 km M 3.3 AZORES ISLANDS, PORTUGAL
2019-06-14 20:44:54.4 15.40 N 46.60 W 10 km M 5.1 NORTHERN MID-ATLANTIC RIDGE

The chemical composition of this magma that is intruyendo a priori would have to think that it would be basaltic and very hot, so it could be happening at this time therefore a mixture of magma and an increase in the temperature of the magma camera, which will be little A little climbing, like a coffee maker making coffee, what mike would say.

On surface is soon to locate anything, except the seismicity, but in a few days there could be something in the GPS and even about 30 days the gases will confirm this activity. We'll have to stay tuned.

This is how they told us a few days ago in several publications and in this spanish tv report.

http://www.rtve.es/noticias/20190611/teide-vuelve-dar-senales-vida/1955301.shtml

And it is that it all seems that this volcanic colossus, the largest third on the planet, continues with a firm step towards the reactivation of its volcanic system. Speaking for everyone to understand me, the teide is waking up come on. This doesn't involve a short-term eruption that does. Now that it happens in the medium term (3-12 months) or long term (1-5 years) is not known and must be monitored very carefully as this new activity evolves.

For the moment the following is to expect some more seismic activity in coming days, weeks and months and that the rest of parameters begin to show variations such as GPS and the amount of gases (Co2 mainly), in addition to other parameters such as radon concentration . Hopefully this will calm down and go back to sleep, but of course now it doesn't look like it. We'll see what happens.

Something if I'm clear, the pevolca should meet to evaluate this new activity in that area as soon as possible. (Enrique)"

https://scontent-lhr3-1.xx.fbcdn.net/v/t1.0-9/64495739_783041795427123_6675580879768649728_n.png?_nc_cat=106&_nc_ht=scontent-lhr3-1.xx&oh=757080c64a66f10f722c8ccdb8ee684c&oe=5D8FD790

https://scontent-lhr3-1.xx.fbcdn.net/v/t1.0-9/64300745_783041858760450_9180870363343486976_n.jpg?_nc_cat=110&_nc_ht=scontent-lhr3-1.xx&oh=52cfb38b2fc1e1d70fa212ba937a0932&oe=5D9A2EA3

https://scontent-lhr3-1.xx.fbcdn.net/v/t1.0-9/64842739_783041852093784_2636227961094668288_n.jpg?_nc_cat=104&_nc_ht=scontent-lhr3-1.xx&oh=6e1dfb0a35c5f2568f16db0ccc43858c&oe=5D9B2A6F

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Re: El Hierro
« Reply #5447 on: June 15, 2019, 04:46:03 am »
Translated.

Tenerife records 500 small earthquakes in less than two hours
EFE Las Palmas of Gran CanariaJune 15 2019
Tenerife records 500 small earthquakes in less than two hours

https://estaticos.efe.com/efecom/recursos2/imagen.aspx?lVW2oAh2vjMruzqBGQHoZ-P-2f-P-2fgNjQjUDIhQ4TncnkXVSTX-P-2bAoG0sxzXPZPAk5l-P-2fU5UtGvYsPXRjg0hDWAunp6DEA-P-3d-P-3d

Graphic facilitated by the Canarian Volcanological Institute (Involcán) showing the small earthquakes detected this afternoon around the Teide in just under two hours. EFE

 
The Canary Seismic Network has registered this afternoon more than 500 small earthquakes in Tenerife in less than two hours, as reported by the Canarian Volcanological Institute (Involcán), which attributes them to the possible "injection of magmatic fluids" into the system of the Teide.

This "seismic swarm" was observed between 17.09 and 18.50 hours this Friday (Canarian time) and has characteristics similar to that recorded on October 2, 2016, when more than 700 small earthquakes were recorded in the Teide environment.

https://www.efe.com/efe/canarias/medio-ambiente-y-ciencia/tenerife-registra-500-pequenos-terremotos-en-menos-de-dos-horas/50001310-4001121?fbclid=IwAR1d3lKR9bCnXN7T8ukcWeE6YGJLublJluUwouJf9IluDnTPQp0bxDWm4QM

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Re: El Hierro
« Reply #5448 on: June 15, 2019, 10:57:56 am »
Early this morning a 2.7 earthquake   a 3.8   earthquake  a 2.4  earthquake.

es2019hccpp   15/06/2019   00:51:44   01:51:44   28.6879   -17.1442       2.7   mbLg       ATLÁNTICO-CANARIAS


es2019hcdek   15/06/2019   01:29:48   02:29:48   29.3195   -16.2972   53   3.8   mb       ATLÁNTICO-CANARIAS


es2019hcfaj   15/06/2019   05:16:55   06:16:55   29.2309   -16.4251   1   2.4   mbLg       ATLÁNTICO-CANARIAS

http://www.ign.es/web/resources/volcanologia/tproximos/canarias.html

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Re: El Hierro
« Reply #5449 on: June 15, 2019, 13:31:25 pm »
The sound of the earthquake swarm 14th June.

This is the sonification of the event of long period events, registered by the Canary Seismic Network between 17:09 and 18:50 hours yesterday 06/14/2019 (Canarian time). You can hear 3 hours of seismic signal, from 16:30 to 19:30 , reduced in just one minute. The hundreds of long period events are clearly heard.

https://www.youtube.com/watch?v=CXC4untvHkA&fbclid=IwAR1ENKJEnHgXf8c04VftBVeRXZ6P5mebTDTcT15F9gXxpnHdf4mEi_K81zk
« Last Edit: June 15, 2019, 13:33:40 pm by jand »

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Re: El Hierro
« Reply #5450 on: June 15, 2019, 18:24:04 pm »
Latest update courtesy of Enrique.

Translated.

"Summary of yesterday's seismic swarm. As long as the long-term earthquakes or "LP" continue in the center of Tenerife and some more scattered by the archipelago, Canary Islands, Spain.- weekend and we return to the informative blackout of the ign that has left us a swarm with more than 500 Small earthquakes and with seismic that continues their march. What will the pevolca do, should meet and make a statement, make decisions or measures if you see it convenient or not.

In short in my personal opinion, I believe that in accordance with the current legislation of its own decree approved on July 30, 2018, it would have to be seen and confirmed the state of the volcanic surveillance light, whether or not to raise drills to know that Do, propose or not an increase in surveillance, plan and organize or not talks of volcanic education, etc) but at the moment no one knows, for the moment there is nothing of anything. We'll see if next week.

Today there are several earthquakes without locating, some localized automatically with more or less success or misdeed (the 2.7 of 0:51 h UTC today seems to be in the caldera, not where they have put it) that we will have to analyze When you put the revised results on Monday or Monday afternoon.

From what happened yesterday, on social media as twitter is talking about the similarity of signs with others that are already known from other volcanoes that have done similar things, in this case is the volcano volcano and its already famous touch of drums (Drumbeat) he did in April 2015 and whose summary begins like this.

" Long-term (LP) Long-term earthquakes have been described from several andesíticos and dacíticos volcanoes, which usually accompany the rise and increase of the effusion (surface eruption) of viscous magma. However, the processes that control the occurrence and characteristics of the period between tremor and tremor, known as drum and lp earthquakes in general remain controversial.
In April 2015 after 17 years of eruption in progress. After four days of high levels of continuous tremor and "pressed", highly periodic lp earthquakes appear for the first time on April 10th. (see the last figure of the seismogram mentioned in white and black compared to that of involcan that is in several colors) "...

The summary is completed with this conclusion: " observations increase the phenomenology of drum lp earthquakes and suggest that in the tungurahua volcano they are the result of the gas flow and the rapid controlled pressurization of it by the failure that has been opened and the touch From the margins of the column with the ascending magma."

But we went back to Tenerife, yesterday, past four and a half of the afternoon began a new seismic swarm in the area of the central caldera of the teide-Pico Viejo System, on the island of Tenerife of which some 80 events have already been located Of the more than 500 that occurred.

The Swarm had as a prelude an earthquake at 14:28 hr, the ign assigned it a magnitude of 1.9 and located its hypocenter at 12.8 km deep, placing its epicenter a few 5 km to the so of the crater of the Old Pico Volcano. This earthquake has now been the most energetic of this series.

A little later, about four and a half began to appreciate in the spectrogram of the seismic station Maci, a series of signs indicating the beginning of a seismic swarm. A lot of vertical signs began to appear all very together, almost overlapping each other. This clustering of seismic signals is sometimes known as "tremor tremor".

Earthquakes were happening at a rate of four or five per minute, coming to be counted in an hour and a half more than 500 events. The series stopped on six in the afternoon, with two new earthquakes a little more energy; from 1.2 and 1.6 to 12 km deep. Most of the earthquakes did not reach magnitude 1.0 and its average depth is 14 km.

I invite you to listen to it in this accelerated audition put by the involcan where you hear it as if it were a metal bar crunching before you split until it's part. It's awesome:
https://www.youtube.com/watch?v=CXC4untvHkA

In the analysis of seismic signs we see how in the wave form the arrivals of the p and s waves are appreciated, while in the spectrogram we see as the signal marks above all on low frequencies.

And highlight like yesterday that for the ign these earthquakes are hybrids, while for involcán they are long-term events. Even in this they agree, although in my case I have it very clear, these are long-term events when fulfilling all their requirements

Yesterday I tried to explain it, but as in the spectrogram and seismograms of the ign do not appreciate the earthquakes, attached a series of graphics with data from maci where we can see:

- Seismogram and spectrogram of the whole swarm, period of time: 16:27 ~ 18:05

- graphic where we appreciate in more detail the signs of wave and spectrogram. We see how every minute occurs between four and five earthquakes.

- analysis of the seismic signs of the 14:28 hr event. The ign assigned him a magnitude of 1.9 and located him 13 km deep. It shows wave form and spectral analysis of the signal both in spectrogram and in energy distribution as often.

Figures:
- public data of the station station served by the usgs and visualized by Isaac.
http://ds.iris.edu/ds/nodes/dmc/tools/station_quicklook/IU/MACI/
- Map of the earthquake viewer in the Canary Islands of the ign on which it has been interpreted what is happening in Tenerife, drawing the area of the swarm, the main alignments and the efforts.
http://www.ign.es/web/resources/volcanologia/tproximos/canarias.html#

Source Tweet Tunguragua:
https://twitter.com/AndyFBell/status/1139923548078821381


DECREE APPROVAL PEVOLCA:
https://www.iberley.es/legislacion/decreto-112-2018-c-canarias-plan-especial-proteccion-civil-atencion-emergencias-riesgo-volcanico-pevolca-25989741


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Re: El Hierro
« Reply #5452 on: June 17, 2019, 14:09:30 pm »

Enrique has commented that volcanodiscovery.com have updated about all the activity.

Translated.

"By the way these things make change and improve things, so it's time to warn of an improvement, in one of those portals, the volcanodiscovery.com have finally included the data of the complete catalogue with all earthquakes in the Canary Islands, - including The children of 1,5-which gives a result like the one we showed on their day in avcan (it was a great tool and that made in lack) and that gives us account of the seismic swarms and their depth. In the chart you appreciate the last two with a grouping of yellow earthquakes, the old peak of the past day 14 and the deep that we had in front of the shores of güímar at the first of the month. (Enrique)"

https://www.volcanodiscovery.com/fileadmin/charts/quakes-v637_1_6_2019_30_6_2019_s.png


https://www.volcanodiscovery.com/tenerife-earthquakes/archive/2019-jun.html


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Re: El Hierro
« Reply #5454 on: June 19, 2019, 21:45:05 pm »
Activity back to El Hierro.

2.1 mbLg SW FRONTERA.IHI 2019/06/19 07:18:19 39 +info

2.1 mbLg W FRONTERA.IHI 2019/06/19 04:48:23 30 +info

2.0 mbLg SW FRONTERA.IHI 2019/06/18 21:18:52 37 +info

1.7 mbLg SW EL PINAR DE EL HIERRO.IHI 2019/06/18 18:51:57 37 +info

http://www.ign.es/web/resources/volcanologia/tproximos/canarias.html

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Re: El Hierro
« Reply #5455 on: Today at 06:31:19 »
Latest update courtesy of Enrique.

Translated.

"Deep seismic activity in El Hierro and surroundings, while continuing the seismicity in the centre of Tenerife and surroundings, Canary Islands, Spain..- as following a manual of volcanology, the island of el hierro continues with its activity, Getting deeper and deeper, where in the last few days we have had up to 5 Deep earthquakes located on the island.

Es2019lxkfg 19/06/2019 07:18:19 27.7047 18.1477 39 km m 2.1 mblg sw border. Ihi
Es2019lxfgq 19/06/2019 04:48:23 27.8232 18.3506 30 km m 2.1 mblg w border. Ihi
Es2019lwqla 18/06/2019 21:18:52 27.6989 18.1291 37 km m 2.0 mblg sw border. Ihi
Es2019lwloz 18/06/2019 18:51:57 27.6806 18.0410 37 km m 1.7 mblg sw el pinar de el hierro. Ihi
Es2019hdbfp 16/06/2019 08:01:57 27.8092 18.2200 34 km m 1.9 mblg w border. Ihi

While the activity continues in the centre of Tenerife, both in the caldera at 12-13 km deep and in the south dorsal at 8 km and towards the area of the volcano in the middle.

Es2019lvnmp 18/06/2019 06:41:49 28.2539 16.6886 12 km m 0.8 mblg ne guia de isora. Itf
Es2019lvktr 18/06/2019 05:19:08 28.2504 16.6847 13 km m 0.4 mblg ne guia de isora. Itf
Es2019lvhrj 18/06/2019 03:45:31 28.1459 16.3183 26 km m 0.8 Mblg Atlantic-Canary Islands
Es2019lutvq 17/06/2019 20:46:12 28.1706 16.6531 8,0 km m 0.4 mblg nw vilaflor of chasna. Itf
Es2019hdoki 17/06/2019 12:52:29 28.0271 16.4243 22 km m 2.0 mblg is. Itf

Today I bring a reflection, many years ago some seismic data showed a volcanic awakening on the island of el hierro, which ended up in eruption and something else. After many questions and stories during El Hierro, I wrote hundreds of informative notes on Facebook, from avcan with a lot of maps and graphics, as well as thousands of posts in forums, there are for several books. But there were many tremors, many noises and many observable things and in almost all, it denied the possibility of eruption for fear or ignorance and especially for a nefarious management of information where everyone was contradicted, even once they were accused Episode of tremor that was a clear pre-eruptive parameter, there were people denying. Only luck wanted the eruption to be in the sea, but it could have been on earth and today we could be talking about something else.

Today we are again with an awakening, this time in Tenerife that started in October 2016, when I opened this facebook, and there are 270 informative notes. I think it would be more than interesting to see all the possible data, as it happens in this chart that came out after all the iron to bull past, indicating means to which the public has no access and that should have it, a shame. Now we go to Tenerife and unless you make it yourself with the raw data of the ign or of, we won't see anything like it. (Enrique)

Photo:
https://noticiasdelaciencia.com/art/25967/como-predecir-la-magnitud-de-una-futura-erupcion-volcanica-en-el-hierro