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El Hierro

Started by admin, October 12, 2011, 10:40:14 AM

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jand

#6480
October 28, 2021, 07:43:52 AM
They fly over the different emission centers with a drone to see the state of the cracks that present the edges of the cone


https://twitter.com/i/status/1453331640902635520

jand

#6482
October 28, 2021, 09:55:34 AM
The main cone of the volcano breaks again
It should be added that concern is growing about the emissions of sulfur dioxide (SO2) from the volcanic plume, which range between 6,000 and 9,000 tons per day.

EFE
Santa Cruz de La Palma
Thursday, 28 October 2021, 08:57
The new rupture of the main cone of the La Palma volcano that occurred yesterday, Wednesday, maintains the flow of lava towards the west of the island, where there is also growing concern about the sulfur dioxide (SO2) missions of the volcanic plume, which oscillate between 6,000 and 9,000 tons per day.

In the last hours, earthquakes with a magnitude greater than 3.5 in medium and deep depths -more than 20 kilometers- have increased in La Palma , which increases the chances of an Earthquake of intensity VI (slightly damaging), as indicated by the Department of Homeland Security (DSN) in its report issued at eight o'clock this morning, peninsular time.

It also confirms that the new rupture of the main cone of the Cumbre Vieja volcano keeps the lava flow to the west, feeding the already existing flows.

On the other hand, and in view of the possible new arrival of lava to the sea, the Maritime Captaincy has established an exclusion perimeter from the south (Puerto Naos) to the north (Tazacorte) and parallel to the coast half a nautical mile from the coast.

With regard to air quality, the DSN reports that the eruptive process has increased the values ​​of sulfur dioxide (SO2) on the west side of the island, where the volcano could be emitting up to 9,000 tons per day of this gas into the atmosphere.

Early this Thursday the Weather scenario continued to be favorable for airport operations on the island of La Palma.

The island of La Palma has experienced 53 new earthquakes last night , according to information from the National Geographic Institute, which details that the largest Earthquake of those registered since midnight (local time) occurred at 5:05 a.m. in Fuencaliente , with a magnitude of 3.6 and an intensity estimated at III (weak).

A few hours earlier, at 01:25, the seismographs detected in Villa de Mazo, another movement of magnitude 3.5, in this case with a greater intensity: IV or "widely observed" (felt inside buildings by many and only by very few on the outside; slight shaking or shaking of the building, room or bed; rattling of dishes, glassware, windows and doors and no damage).

All movements detected during the night (between 00:00 and 6:30) have occurred at depths of between 10 and 14 kilometers.

jand

#6485
October 28, 2021, 15:35:59 PM Last Edit: October 28, 2021, 15:38:34 PM by jand
Latest update courtesy of Enrique.

28/10/2021 15:15h Canary Islands. - ERUPTION OF LA PALMA  ISLAND. - ACTIVE NEIGHBORHOOD IN THE SOUTH, NEXT TO EVERYWHERE - SISMICITY IS TOO QUIET 24H WITHOUT A 4+. Neither so much nor so little, the ends are not good and in the case of the volcano it might seem that it is calmer today, but do not be deceived, it can not calm down so quickly, so the other option is that it is accumulating energy to let go lpe, with an Earthquake stronger than the ones we're used to lately, the later, the fatter.... being able to take up to a week like it did in 2013 in the El Hierro Swamp.

There is an active flow, which I was talking about yesterday, I leave you the graphic of yesterday until I do today's flow that goes above the old flow, which I have called the 13 flow that was going above the old is coming out of the field of coladas in its south area and is ready to destroy more areas in the coming days, in this case there are two arms, one the 13A that follows above the field and another the 13B that has left the ancient coladas field and is advancing again destroying new areas, after almost completely destroying the "kipuka" where the dogs were.

In the picture the new is in red.

On the map, the new flow today at 11:30am is in red. The truth is that right now a lot of people wonder where all that lava we do not see goes, part gets into the volcanic tubes in the highest area and goes down by these tubes towards lower areas, where there is already a lot of lava in the tubes and they're swelling up a lot:

And now that if the system is accumulating a lot of seismic energy and there is a strong earthquake 5+ will make some coladas that are standing start again in many places being so swollen, I hope the Laguna will go towards The South and what don't open a slide north, although it's hard to know.

SOURCE PHOTO:


https://twitter.com/InakiSilveira/status/1453727282430832641?s=20&fbclid=IwAR1G8vpfyqL7jb-Uvv9AiH3zyNnvgN-besJBvsqUl_N49JGUldqhnhbbqYo



https://scontent-lcy1-1.xx.fbcdn.net/v/t1.6435-9/249222872_1431384147259548_6450388564041153965_n.jpg?_nc_cat=100&ccb=1-5&_nc_sid=730e14&_nc_ohc=qIjfZZ62GpAAX_6oQJe&_nc_ht=scontent-lcy1-1.xx&oh=f761ad838a475e1f5355244cf585b777&oe=619F6F30

jand

#6486
October 28, 2021, 15:42:33 PM
And yesterday I said that part of flow13 was involved in the previous volcanic tubes, today I put this video where you can clearly see this fact and talk to us about this phenomenon and the best, compare it with the wind cave in Tenerife and the possible A that that tube at the end could be visible, you can see it.. (Enrique)



https://twitter.com/RTVCes/status/1453724076967559174

jand

#6488
October 28, 2021, 16:44:23 PM

Volcanes y Ciencia Hoy - Volcanoes and Science Today.
EDITED: Today from about 6:40 to 7.00h we have had another event of spasmodic tremor, or what is the same, another squeak that has left more magma coming up, another pedorret that does not do but announce more activity for the next hour s and days. (Enrique)

https://www.ign.es/web/ign/portal/vlc-senales-sismicas/-/senales-sismicas/getInfoHora?fecha=2021-10-28&tipoFO=1&tipoSP=1&estacion=PA01&hora=06-07&fbclid=IwAR0F4ZPCAM3H4a082bnIBBzDXPdSOF1kkY-GuiI2ayp2gnnUbEI4DDj3szk

jand

#6490
October 29, 2021, 07:24:06 AM

Latest update courtesy of Enrique


TO LA PALMA. - ACTIVE NECKLACE 13B SOUTH IN TOQUE - MAP OF THE NECKLACE - LOW EÃ' S02. - IGN AUTO SYSTEM FAILURE. - The volcano seems calmer in its phases, - the SO2 has dropped to 16350 Ton / day,- but the truth is that it reminds me of a revolt guy when he is quiet because he is going to make a mischief, let's get some prepared, the energy rate released to weigh r of not having 4+ earthquakes the last 24h, still very high, but today it has been very linear releasing energy, without barely steps, which changes if we see the last days where the last steps are clearly seen.

LAVA NECKLACE MAPS:

This morning's flow video is awesome, it looks like the 13A flow (the southest) has developed two arms, one that goes down between the old flow 3 and 4 and the one that bounces over the 4 that join together at the end and bounce over the fronts standing of themselves in an impressive way, it is indescribable giving place to a front that has gone from 100m to 300m and has advanced 600m since yesterday's position.

https://www.youtube.com/watch?v=WNbyq0w80sM

A little more north of the 13A, discovers another flow, the 13B, with two arms also discovers the old coladas 2 and 5 that destroyed Todoque above the volcanic tube that is still powered from the upper area towards the delta, at least what looks like the smoke who hasn't stopped throwing for some ovens on his tour.

The next arm, the 13C gets into a volcanic tube, as seen in the video of another post, which is not known if it goes to the Delta or coladas 5 and 8 or on the contrary enters the volcanic tube system that feeds the laundry 9, in which by the way a new washing of the 13B ram descends through it to almost the Laguna Mountain.

Finally the 13D arm has dropped on the flow 10 that has taken more height, covering several kipukas and we'll see what happens, because it's putting a lot of pressure, I hope that if that area of laundry 10 that affects the lagoon moves, do it towards His r, because as there is an overflow near the school, the lava will come out very forcefully and will jump across the main street of Laguna that is repressing it and will rock with all the other way down to the ocean by the north of the Lagu Mountain And.

Let's see if there's any luck, since the cone has changed the settings and less lava coming into this area, except for a mouth of lava that feeds the northern pipes non-stop.

MAP OF THE NECKLACE THERAPY

And a good news, on twitter they have released the first map of the thickness of lava coladas, the height or the amount of meters with which it has covered the different areas, some basic data when setting up a topography that can be used for but a forecast of the most likely routes of the new coladas. That will appear in months, because at the moment except for the initial one, we haven't seen any more.

Thicker Colored Map PHOTO:

https://twitter.com/.../status/145378803...68/photo/1

IGN AUTO SYSTEM FAILURE
In addition to failing the system of spectrograms and seismograms, the Earthquake visor in the canaries and with the arrangements they make, there is a failure of the system in the IGN and it is that they locate two earthquakes. This is a mistake, I explain: They are typically volcanic earthquakes that have a very long tail or tail and look like two earthquakes, when it's only one, that is seen because they have like two parts and the second above all is marked low frequencies in the spectrogram. They indicate a depressurization of Fluids in depth and therefore a contribution of magma to the duct system that leads it to the surface eruption point.

INTRODUCTION:- they have to relocate -

es2021vdufv 28/10/2021 20:20:59 28.5844 -17.8243 44 km M 4.4 mbLg SW MAZO VILLA. ILP
REVIEW1
es2021vdugv 28/10/2021 20:21:00 21:21:00 28.5844 -17.8243 44 km M 4.4 mbLg SW MAY VILLA. ILP
es2021vdufv 28/10/2021 20:21:05 21:21:05 28.7999 -17.7796 22 km M 4.4 mbLg W SAN ANDREES AND SAUCES. ILP
REVIEWED2
es2021vdugv 28/10/2021 20:21:00 21:21:00 28.5844 -17.8243 38 km M 4.2 mbLg SW MAY VILLA. ILP
es2021vdufv 28/10/2021 20:21:05 21:21:05 28.7999 -17.7796 22 km M 4.4 mbLg W SAN ANDREES AND SAUCES. ILP
REVIEW3
es2021vdugv 28/10/2021 20:21:00 21:21:00 28.5844 -17.8243 38 km M 4.2 mbLg SW MAY VILLA. ILP
and what's left to be reviewed...

CHRONIC OF THE ERUPTION.

Today the chronicle of the eruption story from a house of los Llanos de Aridane, where: "the ashes cover the rays of the sun, it's cold, smells fatal and the house does not stop vibrating, feeling the fury of the live volcano that shakes the whole house with Thank you sound of continuous soplete, explosions to others, with the crumbs of the doors and windows that sound every bit, sometimes with several blows per minute on the ground that move you side by side as if you were on a boat and even some continuous vibrations for more than a minute, loud noises, buzzing, whistling, squeaking... and then.. Ruuuuuuummmm BOOM..... 4.8 Earthquake, the most felt in the Llanos that gives you the point and moves the whole house and its contents... heart beat and many bigger scared... "Just putting this on you gives you goosebumps, and thinking about what this is being for a lot of people."

Encourage all palmers (Enrique)


https://scontent-lcy1-1.xx.fbcdn.net/v/t1.6435-9/s600x600/249575390_1431565867241376_3417680705071179142_n.jpg?_nc_cat=111&ccb=1-5&_nc_sid=730e14&_nc_ohc=_kwoltj8EL4AX8WzGc9&_nc_ht=scontent-lcy1-1.xx&oh=bec3bd358bee95a551f3ee5972087eac&oe=61A301E7


https://scontent-lcy1-1.xx.fbcdn.net/v/t1.6435-9/s600x600/249680710_1431565917241371_7651201485370493135_n.jpg?_nc_cat=111&ccb=1-5&_nc_sid=730e14&_nc_ohc=_d-8kSq_6qgAX8DJDd5&_nc_ht=scontent-lcy1-1.xx&oh=6557608a8fded063e3d272dab3f48327&oe=619FFF90


https://scontent-lcy1-1.xx.fbcdn.net/v/t1.6435-9/249624750_1431569783907651_606573802270258018_n.jpg?_nc_cat=108&ccb=1-5&_nc_sid=730e14&_nc_ohc=PnyVINkQrnIAX9DuoIa&_nc_ht=scontent-lcy1-1.xx&oh=854cfd50253e0848937cac30504c73c2&oe=619F660E


https://scontent-lcy1-1.xx.fbcdn.net/v/t1.6435-9/250311524_1431574750573821_1524740393417336073_n.png?_nc_cat=111&ccb=1-5&_nc_sid=730e14&_nc_ohc=SfXxSMA-OjwAX-OGrW7&_nc_ht=scontent-lcy1-1.xx&oh=72a4124c141e46de9171a123a985e32b&oe=61A16178

jand

#6495
October 29, 2021, 10:10:49 AM
Images taken at 9.00 (Canary time) of the South Colada crossing the LP-213 road south of Todoque.



https://www.facebook.com/INVOLCAN/videos/1738111766384160

jand

#6496
October 29, 2021, 10:15:20 AM
Thermographic video of the progress of laundry currently active south of the eruption, measuring around 1200°C.


https://www.facebook.com/watch/?v=232337355556129

jand

#6498
October 29, 2021, 13:08:59 PM

jand

#6499
October 29, 2021, 15:36:01 PM
Drone flight today 12:30.

https://youtu.be/KrIpeYz-sVw

jand

#6501
October 29, 2021, 17:20:34 PM
Vicente Soler, geophysicist: "This volcano is special, it is he who has caught the trick for us"

NIUS interviews the expert, one of the most educational voices to understand a volcano that "never ceases to amaze"
The mantle of the earth is the great unknown, "we volcanologists listen to the planet and little else"
Seismicity, tremor, sulfur dioxide and deformation of the terrain, the indicators that will advance the end of the eruption
Vicente Soler does not lose count of the days that the La Palma volcano has been erupting. "38 -responds to NIUS- and adding" because the end in Cumbre Vieja does not seem close. "On the contrary," he says.

ADVERTISING

His is one of the most accredited and already iconic voices of this volcanic crisis. Vicente Soler Javaloyes (Jacarilla, Alicante, 1954) is the representative of the CSIC, the Higher Council for Scientific Research in Pevolca, the Volcanic Emergency Plan of the Canary Islands. There he analyzes daily the indicators of a volcano that is "special" and never ceases to amaze. After all this time, not only has he not gotten the hang of it anymore, but "he got us," he says.

The geophysicist reviews with NIUS all the important questions to understand what is happening and what may happen in the future on the island of La Palma. He does it with that voice and didactic character that characterizes him. Vicente Soler, "the Fernando Simón of the volcano", they compare him in networks. "What if I have noticed the fame? - He repeats incredulously - what I have noticed is that now, at the gas stations, they want to take selfies with me." A weight that does not detract from the desire to continue at the foot of the volcano, "feeling" his roar and attending to the media to answer the great question, the one that is repeated over and over again.

He asks: Señor Soler, when is all this going to end?

Answer: At the moment, no. Almost the opposite. Indicators of the eruption are still active and strong. On Tuesday, seismicity had decreased, but sulfur dioxide (SO2) remains very high, and ground deformation and tremor persist.

ADVERTISING

P: This, tremor, is a concept that is repeated, what exactly is it?

A: The tremor is a kind of vibration produced by the magma in the final ascent. Magma has a density similar to cement, only it is molten, and raising that mass from three kilometers deep to the surface is what produces the tremor.

Q: And what does it mean that there is still a very high level of sulfur dioxide?

A: A large amount of SO2 means that the amount of magma closest to the surface is important. This gas comes from the degassing of the shallower, more superficial magma, so it shows that the feed dam still has a huge amount of material to emit.

Q: So when can the end be said to be near?

A: When the levels of sulfur dioxide show a clear tendency to decrease, the deformation of the terrain also begins a marked trend of deflation (right now the area is elevated up to 20 centimeters), and the seismicity tends to gradually disappear. The tremor will also fade, but that is already the very, very final stages. Geophysics, which measures earthquakes and tremor, was very good at anticipating the onset, since it began on September 11, eight days earlier, while geochemistry, which measures SO2 levels, seems to be very good at anticipating the end.

What counts, after all, are trends. That the seismicity varies momentarily is not indicative, but it would be if the seismicity shows a clear tendency to decrease in successive days. The same happens with the SO2 rate or the deformations. It is the trends that count, not the point value of a day.

Q: What would be the worst eruptive scenario for you?

A: For everyone, the worst case scenario scientifically and socially would be that a new volcano opens on the other side of the island, on the other side.

"For me the break on the 27th was one of the most worrying moments

Q: How likely is that to happen?

A: It is true that very, very few as long as the process continues in the current parameters. Although the history of Events does not mean that new things cannot appear, but so far in the Canary Islands new distant mouths have been opened when there is a momentary cessation of activity. On the 27th, for example, there was a seven-hour break. For me that moment was one of the most worrying because the activity could resume there, as it happened, or in another place. In the 1949 eruption, this happened several times and there were separate mouths kilometers apart, giving rise to two streams, one a kilometer south of the current one and another on the eastern slope that isolated the south of the island.

This is the worst-case scenario, although today it is highly unlikely. In any case, we must be attentive to the geophysical and especially geochemical observables every minute to see that the magnitude of this seismicity does not reach values ​​that could recommend the rupture of the base of the lithosphere and the injection of a new dike. If the cessation of activity is sudden it is worrying, if it is progressive it will be normal.

Q: Would it pose a danger to the population?

A: Magma cannot be expected to resume activity in another part of the island without forewarning. The magma needs to open a path and in that path prior to the eruption it usually produces a deformation, even if it is small, and an associated seismicity. There are early warning mechanisms that are still active, the safety of the inhabitants of La Palma is not in danger. The only thing that is happening with practically no prior warning is that new lava outlets or outlets are opening, but always in the eruptive environment.

Q: Given the bad, what would be the best scenario?

A: The important thing for everyone is that the activity remains in the environment, which is being so, and that the successive variations and disturbances of the lava flow channel favor the flow of lava through existing streams, without invading new areas. Ideally, they should reach the sea where the fajana is already to prevent it from widening. The cone in its construction and destruction, which is constant because it is destabilized, grows so high that it falls. He collapses by himself or with any help, with any explosion or any thrust of magma.

Q: Stops, new mouths appear, why does the volcano behave like this?

A: If compared to a wheel, it is not that the volcano punctures and has to deflate until all the magma is expelled. The idea, or at least what I always shuffle and until now it gives me results consistent with geophysical observables, is that moderate-sized pockets of magma rise from the interior of the earth, which are the ones that push and those that produce these swings. in the eruption. The eruption is not constant. On the 27th, between the completion of the first magmatic pocket and the arrival of the next, the activity stopped for hours. If it were a single, gigantic magma chamber, it would be difficult to understand the stops or changes in the pace of activity. The depth seismicity would be related to the arrival of one of these magma pockets that days later produce an increase in the eruptive activity. It is a dynamic process, which is why there are so many variations.

Q: What is surprising you the most about this volcano?

A: Many things surprise me. The speed with which the eruption was unleashed, the large amount of material expelled, the stoppage on the 27th or the supersonic explosions that drew the shock wave in the gas column. These for me were something unknown in this environment of Canarian volcanism. I was also surprised by the extremely high emission rate of sulfur dioxide.

A much more complete observation is being made here than that of El Hierro in 2011. In fact, this is the first technologically modern eruption in the Canary archipelago. We can combine macroscopic observation of the terrain, direct observation, with geophysical observables that are constantly recorded.

Q: So for you this volcano is special

A: Yes, yes, look, I have one of the few positions in the CSIC of volcanology. I am a geophysicist. I have been indirectly studying the interior of the planet since the year 82 and I have witnessed other eruptions such as Etna, but for me this is a special volcano because it has an enormous volume and there is a great dynamic of variability in the eruptive cone that, for Unfortunately, it is affecting the flow path.

In other eruptions such as Teneguía it was easier. This eruption is already the one that has occupied the largest area of ​​land of all the historic ones on the island of La Palma. It has ended with a series that started in 1585, in which the duration of each volcano was shorter than the previous one.

Q: You explain almost daily, on the ground, the ups and downs of the volcano

A: Well, I try to give some reference that may be useful and that explains a detail or an idea.

Q: Are you going to keep doing it, are you going to stay until the end?

A: I arrived on the 20th and yes, in principle, yes. Until the eruption ends, I will continue here with my day to day, participating in the mornings in the Pevolca, the Canary Islands Volcanic Emergency Plan, and going in the afternoons to observe the volcano, because no matter how much there are drones, no matter how much there are cameras, geophysical and geochemical data, the volcano needs one to see it to have a global perception of the phenomenon. Observation of the phenomenon on the ground produces important additional information.

Q: And do you understand, have you already got the hang of the volcano?

A: This volcano is special. He is the one who has gotten the hang of us. When you see a new mouth open or a new perfect cone is formed and collapses after three days. Those things help you understand that the cone as a whole is almost more of a mountain of incandescent sand than a mountain of rock. They are perceptions that later help to explain things, in the end they are feelings. The noise of the volcano can be recorded, but I assure you that it is better to hear it, because in addition to hearing it, it is felt. They are things that as far as possible, if possible, it is better to live them.

This volcano is also special for that reason, being a Strombolian eruption it is possible to observe it closely. It is not as dangerous as others. It is true that we know more about outer space than the interior of our planet, all the evidence we have of the earth is indirect, all are indirect calculations, hence the difficulty. A difficulty that is not justified, but let's say it does make the inaccurate of our forecasts relative compared to the precision that a geologist can express when analyzing a rock sample under the electron microscope. We auscultate the planet and little else.

Q: Well, you have already become more famous, even, than the bullfighter Vicente Soler

A: I live here isolated in an apartment, working, and I don't consider myself famous at all. What I have noticed (he laughs) is that at some gas stations people ask me for a selfie, but little else, that's my perception of fame.



https://www.niusdiario.es/sociedad/medio-ambiente/entrevista-vicente-soler-volcanologo-csic-este-volcan-es-especial-nos-ha-pillado-el-truco-a-nosotros_18_3224824938.html?fbclid=IwAR1JYOhPz02BEaY

jand

#6502
October 29, 2021, 17:45:17 PM

A 200m active laundry front that is stuck on the southern edge of the ancient coladas towards the Norias residential area, which will first bloom north, we'll see what happens.
If this laundry continues this way, it will reach the cliff and fall into the delta of the eruption of San Juan in 1949, hopefully it will edge the existing laundry and salt the Ocean along the beach of el Charcon. (Enrique)


https://scontent-lcy1-1.xx.fbcdn.net/v/t1.6435-9/250589631_1432168650514431_1316750626732496508_n.jpg?_nc_cat=102&ccb=1-5&_nc_sid=dbeb18&_nc_ohc=U5N-ic8DBdMAX9jU-g1&_nc_ht=scontent-lcy1-1.xx&oh=c07f3c243799bf0693f80f56cb935d69&oe=61A391ED

jand

#6503
October 29, 2021, 17:48:29 PM

In the volcano, what attracts more attention is that the tremor rises and tends to continue rising, low deformation, gases lower, but do not trust, the seismicity announces already the next eruptive pulse, with a 4.2 night and above all that in the last s hours are producing quite a few Events, we went over 140 today and over 200 yesterday. The column of ashes of 3500 m, the explosions and darkness in the area is imposing, see the live, it's awesome (Enrique)

https://www.youtube.com/watch?v=XLeYZY6VVAw

es2021vdugv 28/10/2021 20:21:00 21:21:00 28.5844 -17.8243 38 km M 4.2 mbLg IV SW VILLA DE MAZO. ILP


https://scontent-lcy1-1.xx.fbcdn.net/v/t1.6435-9/250757811_1432186597179303_117896968712232705_n.png?_nc_cat=108&ccb=1-5&_nc_sid=dbeb18&_nc_ohc=D8qgg9rGJS8AX_GT0uD&_nc_ht=scontent-lcy1-1.xx&oh=76bea560df847161da71d0de681f8e21&oe=61A13F63

jand

#6505
October 29, 2021, 20:32:53 PM
Todays noise from the volcano.


https://www.youtube.com/watch?v=bbHMrzWIsZI

jand

#6507
October 30, 2021, 07:09:32 AM
Earthquakes are still continuing early this morning there was a M4.1 with intensity IV at a deeper depth 37km

4.1 mbLg   SW VILLA DE MAZO.ILP
2021/10/30 03:36:06   IV   
37


http://www.ign.es/web/resources/volcanologia/tproximos/canarias.html?fbclid=IwAR3GEqfr-AJg4p18QS_fWpPmSxss6-_xwEAQJjv-33JqoKCac_KxSOqQ0A8
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