Volcanic activity in Canary Islands 2021

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Drone footage today.

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

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Day 71 of the eruption in La Palma
#FuerzaLaPalma #ErupciónLaPalma #VolcánLaPalma #LaPalma #losllanosdearidane #elpaso #canarias
Information by the IGN today.
28-11-2021 09:00 UTC
Continuing eruptive activity in La Palma
Since the last announcement, a total of 91 earthquakes have been located in the area affected by volcanic reactivation on the island of La Palma, 6 of them felt by the population.
The seismicity continues under the central area of Cumbre Vieja in the same areas of previous days, 73 of these earthquakes are located at a depth of 10-15 km and the rest at a depth of more than 30 km.
The recorded maximum magnitude is 3.6 (mbLg) in connection with yesterday's Earthquake at 13:53 UTC, with a depth of 36 km.
The tremor signal width has increased overnight.
The island’s GNSS permanent stations network shows a reversal of the elevation recorded between November 24th and 26th at LP03, which is the closest to eruptive centers.
In other stations, slight deflation possibly related to deep seismicity has been stabilized, except in LP01, which continues to be recorded.
In view of the calibrated image at 08:45 UTC, an estimated column height of 1,600 Masl, and a scatter cloud in the southwest direction.
The height of the cone is measured getting a value of 1,126 m. above sea level.
Images: At least one new outlet east of the cone that emits coladas northbound has opened.
Yesterday at 13:30 UTC, due to the decline in the height of the eruptive column, the IGN issued a new VONA (Volcano Observatory Notice for Aviation) reporting that the height was 2,200 m. above sea level.
The IGN continues its presence on the island, where the CAVE has been established, maintaining, densifying and improving the surveillance network.
More information about the volcanic activity of the eruption in La Palma
https://www.ign.es/.../volcanologia/html...icias.html...
REEDITED 15:50 Canary time (28/11/2021):
(Mauricio MF)
According to the PEVOLCA in the statement today Sunday, November 28, 2021 through Maria José Blanco del IGN, on yesterday there was a rise of sulfur dioxide (So2) in the volcanic penacho reaching between 30000 and 49000 t/d, the Co2 o gave Xido of Carbon is still on high going in the Cumbre Vieja building at 2000 t/d.

[jand]

[jand]

28/11/2021 20:30h Canary Islands. - ERUPTION OF LA PALMA ISLAND. - DAY 71. - THIS LOOKS LIKE A NEW ERUPTION. ALL PARAMETERS INDICATE THE SAME, A GREAT MAGMA MOVEMENT AND A CHANGE OF ERUPTIVE DYNAMICS. - NEW NECKLACE IN THE NORTH AND NEAR NORTH OF TODOQUE MOUNTAIN. -

"We were few and pario la grandma" - The truth is that this post is hard to write, what I'm seeing in the data and in the volcano is not very hopeful, on the contrary, it's showing me a change in the eruptive dynamics of it. What does this mean? , I'm going to try to explain it with all the data and that there is to be clearly understood, but basically that we have a volcano for a while, for a while, more than a month, months or even years. It will be the longest and historic one in the Palma. The longest in the archipelago is Lanzarote with 6 years between 1730-1736, so I have to contemplate this possibility, it is the worst of the planned scenarios. I'm sorry, I can't say it otherwise, I'm going in parts:

THE DEFORMATION: If it had a gravimetry of the area, this could be better confirmed, but the data from LP06 and above all LP05 indicate a sinking, which clearly has a very clear reading, the magma depressurization wave by the opening of the eruption point has reached those points in depth, or in other words, the roots that feed the eruptive cone have gotten there. When one makes water pumps, the influence of the pump goes a long way, because it's the same.

What happens, is the same as what I learned in the oil fields that are pressurized by oil and gases, such as Burgan's in Kuwait with 11kg/cm2 at the head of a well, is that when exploding (oil came out without a bomb) they lower their pressure n (in 2015 I was between 3 and 4kg/cm2 and that they had to put bombs) and this caused sinking in the desert of several meters. Now I see the same, and it is gravity who drives it, or what is the same, the weight of the island presses that magma to come out like a grain of pus to which you squeeze, gravity is what squeezes what implies that the magma will follow going out for a long time until it closes or blocked the exit pipe and underground drainage network that feeds it.

At first the magma rose by a lower density and an overpressure by de-pressing, generating a surface pressure, now the change in dynamics indicates another behavior, drainage, now it is draining magma and that can be much time and much amount through a system of impressive conductors of several dozens of miles around the eruptive point. , 3 days ago I reached LP05. If I had a detail gravimetry I could even calculate the volume of magma moving, which must be a lot.... to generate a 5cm sink by draining material more than 30km deep.

At the LP03 station we have had an overpressure over the last few days indicating that the system is more pressurized in the exit drive, although it seems to be a bit lower, not lowering to the top point, indicating something else, the caudal sig ue being very big and tall and trending up for almost two weeks ago, explaining a little bit of what happened today.

TERROR AND GAS:

The high gas reading, about 40000 tons daily of SO2 (between 30,000 and 50,000), a burrada, indicate the arrival of fresh magma, which is corresponding to the deformation and the tremor that tells us a few more things. It was going down and the wave of new material has arrived causing the eruption of the laundry 18 that struck the cemetery due to excessive pressure. After this, the tremor was slowly rising, when it has suddenly come down, indicating a clogging in the main duct at the base of the cone or something below, and the magma has searched for the easiest area to get out, right at the base of a cone, with what has presurized, The deck has opened more and finally opened up step outside causing what we saw this morning. And the gases will be responsible for provoking new columns of ash and pyroclasts for the gas chimneys, which appear to be the same.

Earthquake AND SESMIC ENERGY.

The seismic energy recount these last few hours does not but confirm this I comment, I do not have detailed seismic maps, but if you look a little, the deep seismicity occurs in the Northeast of Cumbre Vieja between the Pueblo and heading to March, while the surface is produce under the Vieja summit. In addition today as new there are earthquakes between both cameras, between 20 and 30 km, indicating a change of pressure on the way or more magma on the way.

Although the system is becoming predictable, with a new pattern of deep earthquakes every 3 days, about 70-72h that has already been repeated 3 times and although it seems like it is decreasing in magnitude at the moment, I don't care. we'll see if there's no other important in the next few hours, he lacks energy to let go.

LAVA NECKLACE:

The 6 mouths that vomited lava since this morning have formed a small cone and that join together to go down the edge (I have called it as colada 19) and reaches the north edge of the ancient coladas field, following that north edge, having already passed l On the road to Tacande heading to the Laguna which will arrive in 24-48-72h according to the supply of material and wishing it would stop sooner. If you don't stop, you will continue leaving the school zone in La Laguna towards Tazacorte and from there towards the ocean edge of the Laguna Mountain in the North, towards the other cemetery and Football track, my mother, where you will reach in about 4-7 days.

On the other side there is another flow, an arm of flow 16 that has gone north of the Laguna Mountain and is heading its way to the Atlantic Ocean. Don't miss the video

THE LAVA RIVER NORTH OF MOUNTAIN TODOKE.

https://www.youtube.com/watch?v=YWh4JnkbMqM

CONclusion:

This volcano is surprising me, especially because I know its geology everywhere, from the galleries to its history and its formation, but what I'm living I didn't expect it or in dreams, it's a bastard that when it has stopped, it has changed not to die and The play turned out well.

What continues to worry me now is that he does as he already did in 1949, that suddenly stops by a clogging in the conduit and that the pressure blow of all that moving magma causes the break of the conduction and the release of material by another siti o, with three possibilities:

1. - a traffic jam in the climbing canal in the Paso area in hours (12-72h)
2. - a deeper clogging that directly provokes the opening of the Dorsal of Cumbre Vieja with material exit on the top in the area of Nambroque in Cumbre Old where it should take longer, between 48 and 144 hours (2-6 days)
3. - other options with opening elsewhere in the areas where magma migrates, which I haven't considered.

I fell into the account of what could be happening this morning when I looked at the data, it's not something that's suddenly, it comes out, I didn't know how to say it... it could last for years... It's terrible.. it's the pessimistic scenario, but I hope one more realistic than in 1-3 months it seems, that's before 3 weeks not for sure, that would be the most optimistic. The truth is it's very difficult to know what it will do and I can only give hints of what it can do seeing we've had it before in the archipelago.

Big encouragement to the palm trees, I'm going to see if I make some maps of the coladas and put them in the answers in a bit.
(Enrique)

P.S. I hope I'm wrong and it closes in 3 weeks, but I'm very afraid it won't fall that short....

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Yesterday there has been a significant increase in seismicity on La Palma, with 127 earthquakes, the largest from 4.3 to 33 km deep. The tremor signal has increased considerably compared to the last few days, almost doubling at this time.


https://pbs.twimg.com/media/FFUPXDSX0AEm...name=small

[jand]

A M4.8 Earthquake with a IV intensity.

es2021xjjkq 11/29/2021 08:35:27 08:35:27 28.3857 -17.8321 24.0 4.8 mbLg IV S FUENCALIENTE DE LA PALMA.ILP


EVENT: es2021xjjkq 2021/11/29 08:35:27 28.3857 -17.8321 24 4.8 S FUENCALIENTE DE LA PALMA.ILP
Updated 2021-11-29 08:49 UTC
RATIO OF INTENSITIES (EMS) AND POPULATIONS
IN WHICH THIS HAS BEEN FELT Earthquake:
IV CARDÓN, TAZACORTE.TF IV DOS PINOS, EL PASO.TF IV EL BARRIAL, EL PASO.TF IV EL PASO.TF IV EL PORVENIR, BREÑA ALTA.TF IV HERMOSILLA, LOS LLANOS DE ARIDANE.TF IV MIRANDA, BREÑA ALTA.TF IV PALMASOL, BREÑA ALTA.TF IV PASO DE ABAJO, EL PASO.TF IV PINO DE LA VIRGEN.TF IV SAN PEDRO DE BREÑA ALTA, BREÑA ALTA.TF IV TENDIÑA, LOS LLANOS DE ARIDANE.TF III-IV LA CUESTA, BREÑA ALTA.TF III-IV LAS LEDAS, BREÑA BAJA.TF

III-IV LODERO, VILLA DE MAZO.TF
III-IV MALPAISES (BELOW), VILLA DE MAZO.TF
III-IV MONTAÑA TENISCA, LOS LLANOS DE ARIDANE.TF
III-IV MONTE DE BREÑA, VILLA DE MAZO.TF
III-IV MONTE DE PUEBLO, VILLA DE MAZO.TF
III-IV RETAMAR, LOS LLANOS DE ARIDANE.TF
III-IV SAN ANTONIO, BREÑA BAJA.TF
III-IV SAN SIMÓN, VILLA DE MAZO.TF
III-IV TAZACORTE.TF
III BUENAVISTA DE ABAJO, BREÑA ALTA.TF
III EL FUERTE, BREÑA BAJA.TF
III LAS LAJITAS, SANTA CRUZ DE LA PALMA.TF
III LOMO
OSCURO , VILLA DE MAZO.TF III LOS CANCAJOS, BREÑA BAJA.TF
III ROQUE DE ABAJO, SANTA CRUZ DE LA PALMA.TF
III SANTA CRUZ DE LA PALMA.TF
II-III LAS INDIAS, FUENCALIENTE DE LA PALMA.TF
II-III MALPAÍSES (ABOVE), VILLA DE MAZO.TF