Volcanic activity in Canary Islands 2023

[jand]

Activity around all the islands has been ongoing since my last post .

A scientific community have found there are two magma chambers under Teide.

Latest update by Enrique .

01/04/2023 - 21:15h Canary Islands. - WHEN REALITY COMES OUT, TENERIFE HAS SEVERAL MAGMATIC RESERVATIONS WHERE MAGMA IS EVOLVING. WHILE THE EFFORTS AND MOVEMENTS IN THE ARCHIPELAGO CONTINUE. - I have to comment that according to this study, the ct scan of Tenerife clearly shows that in the crust under the Las Cañadas Caldera could find several small magmatic reservoirs. And these magma bubbles are now about five kilometers deep.

Scientists explain, these bubbles are areas where magma cools down and changes its chemical composition. The resulting mixture is said to be a phonolite. These are typical rocks found in volcanic areas. It's one of the types of potentially explosive magma.

According to scientists, these conditions could indicate a slow ascent of a slide is taking place. Among other things, magma bubbles migrating upwards from the deepest layers are referred to as magma bubbles in technical slang.

So between the lines, El Teide is clearly seen giving signals, The study talks of ascending movement from more than ten kilometers below the Teide of magma. All of them could be precursor signs of a possible eruption process in Tenerife.

And no one should have any doubts, because all this will surely give what we all fear, an eruption sooner than later. It's so ready to go into action, just there's no date yet, we don't know.

https://canal.ugr.es/.../advierten-de-la...cia-de.../

TENERIFE:

The truth is that in Tenerife the last 15 days has not moved much, but it has not been still, marks us with the efforts and crossing of the same the main areas of activity these days, the center of which is the area we talk about in the boiler from Ucanca which has been marked with a couple of microshisms, about 10 km and another under the Rocks of Garcia less than 5 km.

es2023gctck 28/03/2023 20:41:09 28.2371 -16.6666 9.5 km M 0.5 mbLg NW Villaflor de Chasna. ITF
ES2023FZUKP 27/03/2023 05:57:01 28.2421 -16.6424 4.8 km M 0.9 mBlg N Villaflor De Chasna. ITF

In addition another activity point is located in the area of Fasnia and the upper part of the Icod valley with several Events with seismicity amounting to 3-4 km, which are not turkey snot, indicating the efforts we have on the island.

Is 2023Feb 31/03/2023 15:13:45 28.2712 -16.5210 4.1 km M 1.1 mbLg NW FASNIA ITF
es2023gczri 29/03/2023 00:00:23 28.3058 -16.5384 6.0 km M 1.1 mbLg BE THE ROYALS. ITF
es2023ftenx 23/03/2023 15:08:02 28.2953 -16.5392 2.7 km M 0.4 mbLg BE THE ROOTS. ITF
es2023Fivyg 17/03/2023 23:27:26 28.2888 -16.5338 2.5 km M 1.1 mbLg NW FASNIA. ITF

Also we have another activity point in the Vilaflor area of Chasna with another magma body 5-8 km.... and with a deep contribution at 13km... that as it suffers efforts, it usually moves too, since the 80s, they are not created...

29/03/2023 12:19:34 28.1759 -16,6856 5.8 km M 0.6 miles NW Villaflor de Chasna. ITF
es2023frgph 22/03/2023 13:54:18 28.1903 -16.6481 13.0 km M 1.2 mbLg NW VILLAFLOR DE CHASNA. ITF
It's 2023fimim 17/03/2023 18:36:15 28.1729 -16.6594 9.0 km M 0.7 miles NW Villaflor de Chasna. ITF

And closing at 120° Fasnia on one side and 120° Vilaflor de Chasna on the other, we have the NW dorsal, which is oddly experiencing quite a few relatively someric movements these past few days along a nearly straight line that crosses the Teno Massizo in direction to Pico Viejo.

es2023giplv 01/04/2023 01:38:52 28.2914 -16.7860 6.5 km M 0.9 mbLg AND SANTIAGO DEL TEIDE. ITF
es2023geqev 29/03/2023 21:29:03 28.3177 -16.8680 3.7 km M 1.0 mbLg NW SANTIAGO DEL TEIDE. ITF
es2023fzses 27/03/2023 04:49:33 28.2956 -16.7987 6.7 km M 1.0 mbLg AND SANTIAGO DEL TEIDE. ITF
es2023fygjl 26/03/2023 09:43:24 28.3345 -16.8977 9.6 km M 1.3 mbLg SW NORTH GOODNIGHT. ITF

If we take all of this, we are indicated that efforts are up in the center of the island, bad thing, but I can not agree more with the article and that the seismicity of these last 15 days does nothing but back it up or back the issue.

And lastly, what to say about the area of the Enmedio Volcano, because it also moves, that if the location leaves a lot to be desired, the most important thing right now right under that cone.

es2023gjkyq 01/04/2023 12:30:14 28.1106 -16.1654 13.0 km M 2.8 mbLg ATLANTIC-Canary Islands

THE PALM:
In La Palma however, things are not so clear, there are three areas with activity these past 90 days and it seems that the southern Palma is the most warring, as far as seismicity is concerned, especially in depth.

is2023fpvrf 21/03/2023 19:15:09 28.5461 -17.8476 14.0 km M 2.2 mbLg N PALMA FUENCALIENTE. I L I P
es2023fdfpp 14/03/2023 21:32:28 28.5560 -17.8306 11.0 km M 2.1 mbLg NE OF PALMA FUENCALIENTE. I L I P
es2023fail 13/03/2023 09:05:37 28.5475 -17.8355 15.0 km M 2.3 mbLg NE FUENCALIENTE OF THE PALMA. I L I P
* is2023elukn 05/03/2023 08:37:19 28.5479 -17.8538 11.0 km M 1.9 mbLg Sense II N PALM FUENCALIENTE. I L I P

And above too, this is a news indicating regional efforts, seismicity we hadn't had yet, let's hope it won't go to much more.
es2023gegdy 29/03/2023 16:24:57 28.5767 -17.8341 3.0 km M 1.5 mbLg SW VILLA DE MAZO. I L I P
es2023gegdv 29/03/2023 16:24:49 28.5880 -17.8385 7.0 km M 1.5 mbLg W VILLA DE MAZO. I L I P

And not only in that southern part of the Summit, in the area of the eruption sique cooling and stopping, with superficial seismicity in the area of cone where it erupted where you can see a set of very concentrated earthquakes.

is2023ggnct 30/03/2023 22:11:42 28.6183 -17.8781 2.2 km M 1.2 mbLg S EL PASSO. I L I P
es2023gawwr 27/03/2023 20:19:44 28.6202 -17.8838 2.4 km M 1.3 mbLg S EL PASO. I L I P
es2023ftaol 23/03/2023 13:07:27 28.6133 -17.8637 3.6 km M 1.6 mbLg IS THE PASS. I L I P

And also the third branch that goes to the Sea through the Bulbilla area and Naos port that is still moving, with swarm included on the 22nd and 23rd of last month... almost nothing.

es2023gbcpk 27/03/2023 23:13:07 28.5792 -17.8935 10.0 km M 1.7 mbLg. I L I P
es2023fpdsy 21/03/2023 10:11:38 28.5659 -17.9085 12.0 km M 1.4 mbLg NW PALMA FUENCALIENTE. I L I P

In the case of the seismic energies released in the Palma, it continues to be observed that the energy is released with more intensity than in January, in a process that indicates that the magma moves down the dorsal of the summits towards the South.(

https://www.volcanodiscovery.com/la.../a.../2023.html

EL HIERRO:

And finally, the Iron is also moving in its west area today and also the southeast and south, where the magma went after the eruption and the swarms that followed the eruption that lifted almost 40 cm the entire island.

es2023gimsv 01/04/2023 00:15:32 27.6873 -18.0333 30.0 km M 2.2 mbLg SW THE IRON PINE. H I E N G

I wish you good night to all the Canary Islands and just emphasize that you have to continue monitoring and trying to better know our islands, our volcanoes and although the data comes out with droplets, politicians go profile and people have to continue with their lives despite everything but with better help and if they are better prepared and organized. (ENRIQUE)

[jand]

Translated

They warn of the existence of a 'hot heart' of magma under the Teide volcano, less than 10 kilometers deep

03/23/2023
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Scientists from the Trofimuk Institute of Petroleum Geology and Geophysics of Novosibirsk in Russia, the Volcanological Institute of the Canary Islands (INVOLCAN) and the University of Granada (UGR) reveal the secrets of the interior of the island of Tenerife through a new seismic tomography study, analyzing for the microseismicity located in the interior of the island

The existence of these magma reservoirs could be a precursor sign of an eruptive process in the volcano.

A scientific collaboration between researchers from the Trofimuk Institute of Petroleum Geology and Geophysics of Novosibirsk in Russia, the Volcanological Institute of the Canary Islands (INVOLCAN) and the University of Granada (UGR) has revealed the secrets of the interior of the island of Tenerife through a new seismic tomography study, analyzing for this the microseismicity located in the interior of the island.

The results of this study have been amazing, because it is the first time that scientists have been able to visualize and characterize a "hot heart" of magma under the island of Tenerife, located less than 10 kilometers deep from the mouth of the Teide volcano. , which could be a precursor sign of an eruptive process in it.

The tomography clearly shows that, in the crust below the Las Cañadas caldera, the presence of small magmatic reservoirs at depths of less than 5 kilometers is possible. These reservoirs allow the magma to cool, changing its chemical composition towards phonolite, a potentially explosive type of magma. These magmatic reservoirs may be the source of highly explosive eruptions such as the one that occurred at the Montaña Blanca volcano around 2,000 years ago and which was of the sub-Plinian type.

At the same time, the study in which the UGR participates explains why the eruptions in Tenerife that occur outside the Las Cañadas caldera, along the NE and NW ridges, have a more effusive character, not being able to In these areas, the magma stagnates for a sufficient time to evolve into a more explosive type.

The results of this study have recently been published in the Journal of Geophysical Research , one of the most relevant international scientific journals in the field of geophysics published by the American Geophysical Society (AGU). These results constitute an important tool for interpreting the increase in seismicity in Tenerife and the emission of carbon dioxide from the Teide crater, which INVOLCAN has detected since the end of 2016. This activity could be related to the slow ascent of a diapir. , say a "bubble" of magma, at depths greater than 10 kilometers below Teide. Therefore, this new knowledge will be of great use for a better interpretation of the precursor signals of a possible eruptive process in Tenerife.

This seismic tomography study has been possible as a result of the launch in 2016 of the Canary Islands Seismic Network managed by the Canary Islands Volcanological Institute (INVOLCAN) and which currently has 19 broadband seismic stations that have allowed downloading the ability to detect and locate thousands of micro-earthquakes in Tenerife. These data, together with those previously recorded by the National Geographic Institute (IGN), have made it possible to use seismic tomography to investigate the interior of the island up to a depth of 20 kilometers and, even more important, to determine the speed of the seismic S waves. , which are the most sensitive to the presence of hydrothermal fluids and magma.

Prior to this recent seismic tomography study, another international scientific collaboration led by the University of Gradada managed to obtain the first three-dimensional model of the island of Tenerife in 2012. For the execution of this scientific collaboration work, the oceanographic vessel R/V Hespérides from which 6459 shots were made, which were recorded by a network made up of 125 seismic stations. This active seismic experiment allowed to investigate the interior of the island up to a depth of 10 kilometers and, due to the nature of the artificial seismic source, it was only possible to obtain a velocity model of the P seismic waves.

The results of this new international scientific collaboration work published in 2023 have been possible thanks to the VOLRISKMAC II projects (MAC2/3.5b/328), co-financed by the European Commission through the INTERREG MAC Territorial Cooperation Program 2014-2020, TFvolcano, funded by the Instituto Tecnológico y de Energías Renovables (ITER) and the Cabildo Insular de Tenerife, FEMALE (PID2019-106260GB-I00) and PROOF-FOREVER as well as the projects of the Russian Science Foundation (Grant No. 20-17- 00075 and Project FWZZ-2022-0017).

Bibliographic reference:

Ivan Koulakov, Luca D'Auria, Janire Prudencio, Iván Cabrera-Pérez, José Barrancos, Germán D. Padilla, Nemesio M. Pérez, Jesús M. Ibáñez. Local Earthquake seismic tomography reveals the link between crustal structure and volcanism in Tenerife (Canary Islands). Journal of Geophysical Research-Solid Earth [ https://doi.org/10.1029/2022JB025798


https://scontent-man2-1.xx.fbcdn.net/v/t...e=642F3849" />

[jand]

https://i0.wp.com/canal.ugr.es/wp-conten....jpg?ssl=1

[jand]

[jand]

[jand]

In the case of the seismic energies released in the Palma, it continues to be observed that the energy is released with more intensity than in January, in a process that indicates that the magma moves by the dorsal of the summits towards the South.(Enrique)

[jand]

03/04/2023 - 22:45h Canary Islands. - Misinformation and data without explanation. - SEISMIC ACTIVITY + DEFORMATION + GASES = MOVING MAGMA. - The whole Earthquake warning system and seismic stations has been offline all weekend, without giving information and part of today, until they have put to work and the data has been coming in (It is a monitoring system worse than many volcanoes of countries called) Third Worlders).
So today, last bull, we found that we have had a good shiver of 2.8 in the area of the Enmedio Volcano that has left a great signal in Tenerife and Gran Canaria and that has been almost 48h without knowing what it was, until they updated. And it's already known if this one moves, Tenerife too.

es2023gjkyq 01/04/2023 12:30:14 28.1106 -16.1654 13.0 2.8 mbLg ATLANTIC-Canary Islands

And wow he has done it, Also we have had noticeable seismic swarm in the area in front of the shores of Garachico, which is hardly seen in CCAN since it is just on the other side of the camera that dampen the signal a lot, especially the S waves that do not arrive by being is in a semi-fluid state. We only have one station and no data, because these things happen, let's go if it's a swarm and people start to notice earthquakes and the system is down, we're fixed.

es2023gmirp 03/04/2023 02:45:24 28.4055 -16.7643 13.0 km M 1.6 mbLg N GARACHICO ITF
es2023gmirj 03/04/2023 02:45:07 28.4546 -16.7692 5.2 km M 1.3 mbLg N Garachico. ITF
es2023gmiho 03/04/2023 02:33:41 28.4972 -16.7352 10.0 km M 1.6 mbLg ATLANTIC-Canary Islands

To these three we have to add another one located the day before yesterday in the Dorsal NW, which we already talked about in the previous post 691 that as we said had a lot of activity these past days.

es2023giplv 01/04/2023 01:38:52 28.2914 -16.7860 6.5 km M 0.9 mbLg AND SANTIAGO DEL TEIDE. ITF

If it were little, this seismic, today indicate me a detail, have also updated the GPS stations in this month of March, and surprise, several stations surrounding this swarm go up, especially, the one that is station in Santiago del Teide TN-06 and Port de la Cruz TN-02 and somewhat less that of Teide TN-08, that of CCAN near Parador TN-07 and that of Vilaflor TN-04 have all registered a small deformation of about dozens of millimeters (1-2 cm), rising in this last month.

https://www.ign.es/web/ign/portal/vlc-gps

If we go back to memory, we will remember all the active swarms, including the one in the Icod area of Wines, the one in the Cauldron and the one in the South in Vilaflor. All of them lined up in a NNW - SSE lineup that reminds us of something, is the same lineup that we had in the eruption at Iron in 2011 and is also the same one that had almost the fracture that opened during the eruption on the Island of Palma, the it's not very reassuring truth. To all this I should add another swarm I didn't put in Arico and the seismic activity these past few days in the NW ridge.

And the last, in the north area, by Garachico, Puerto de la Cruz and the Laguna has smelled rotten eggs and sulfur these days, which is not very normal, people are restless and notice things, animals also, and of course something is clear that could indicate what everyone knows, magma moves under the island, pushing it up and looking for a way out. He hasn't found such an exit yet, but it's clear that it's a matter of time.

And as the study told us the other day, again, everything indicates that the small magma bubbles are moving and ascending very slowly across the island, these days it moves north, and we'll see what it does in a few days when the full moon next 6-7 April, where everything that is subjected to regional pressures and pressurizes should be seismically noticed, we will see what happens.

https://canal.ugr.es/.../advierten-de-la...cia-de.../

On the devil's ladder or Cantor's function for the seismic energies released accumulated in Tenerife, it is clearly appreciated as the system releases more energy than at the beginning of the year, it is not much more but if it is remarkable since it indicates that the system continues to reactivate slowly, nothing new we don't know and can be thrown around like this for weeks, months or even years.

https://www.volcanodiscovery.com/.../archive/2023.html

THE PALM.
In the Palma, there is also activity with a new Earthquake of 2.2 in the summit area denotes us that the magma moves by the N-S dorsal south under the island and accumulates in that area where it is pressurizing slightly, hopefully it does not to go up, at the moment it does not press hard, but that could change if the system recovers energies, for the moment not fortunately.

es2023glexh 02/04/2023 11:42:49 28.5688 -17.8646 11.0 km M 2.2 mbLg N PALMA FUENCALIENTE. I L I P
And as they follow superficial earthquakes indicating the closure or cooling of the more superficial part of the conduit, as well as some more for the deeper efforts in the eruption area and surroundings. By the way these shallows have a small pattern where they repeat themselves almost in the same spot every 3 days, it's curious...
es2023gmdvt 03/04/2023 00:18:41 28.6251 -17.8772 1.7 km M 1.2 mbLg S EL PASO. I L I P
is2023ggnct 30/03/2023 22:11:42 28.6183 -17.8781 2.2 km M 1.2 mbLg S EL PASSO. I L I P
es2023gawwr 27/03/2023 20:19:44 28.6202 -17.8838 2.4 km M 1.3 mbLg S EL PASO. I L I P

I end with a warm greeting to all the Canary Islands, lots of encouragement and we'll keep watching what happens. At the moment there are no clear pre-eruptive parameters or indicating an eruption, there are only prior and no known date that can stop or go to more, so if anyone finds what I have written alarmistic, it is that they have not understood anything, it is only information.

It took me a bit to make this post because lack of information and there is very scattered, the volcanic surveillance system of the Canary Islands is ***** in the face of the population, scientists do not know, but the population is *****, to see if they put a little battery and more data starts to come out, more stations and more things.

PS: By the way in post 285 I made a petition complaining and emphasizing this, the eruption of the Palm had not yet occurred, and you see, we are still the same, well, with 448 signatures, it is clear that this does not interest anyone, then do not pray when it thunders and Remember Guapota or Santa Barbara.

https://www.change.org/.../ministerio-de...to-por-una...

Good Night, (Enrique Hernandez)
· ·

[jand]

09/04/2023 - 22:45h Canary Islands. - NO INFORMATION IN LANZAROTE AND WITH DEEP VOLCANIC EARTHQUAKES IN TENERIFE. - When you look for information

In Lanzarote, there is nothing at all, and that without counting 5 seismic stations in Timanfaya to which there is no access or data or anything.
IGN Lanzarote station in Famara, EFAM is like it doesn't exist. Let's hope that if something happens, we'll find out by the shivers that the island hits and that the islanders notice before the devices notify us or are seen, since we can't see anything at all. Gran Canaria, equal or worse, with more than 1 million inhabitants. There is no Surveillance Network, there is a data chip only for the eyes of authorized personnel and their publications, at a tremendous expense of taxpayer, who doesn't see any of this.

In the IGN they only make bad decisions, they knew it and didn't do anything in the Palma, they knew and did nothing in the Iron (they evacuated the Restinga almost 48h after the start of the eruption, good thing it didn't break close). And now it's Tenerife's turn. This is quiet many will say.... but.... but.... And what happened this afternoon that no one says or talks about??

I start at the end, a signal at 18:30h, a deep Earthquake, whose location is nothing, nothing, and that will surely relocate under the boiler and Pico Viejo 35 km deep. It's a LP from a book... like those that were a little before the eruption of the Palm or El Hierro began.

es2023gymyu 09/04/2023 18:30:53 28.2065 -16.8298 35.0 km M 1.8 mbLg W ISORA GUIDE. ITF

And the most interesting thing just past noon, a swarm under Peak Viejo typical of volcanos and showing fluid depressurization at depth, no less. Not a single one of these Events has been located, which have then been followed by several disperses of those who have located one, just below Pico Viejo at the top or roof of the magmatic chamber.

es2023gyfwj 09/04/2023 14:55:56 28.2565 -16.6817 9.0 km M 1.1 mbLg NE ISORA GUIDE. ITF

At 13:06:30 there is a small Earthquake, a little after at 13:10:30 another small and finally the fat, at 13:17h for several minutes, a swarm with a train of earthquakes of more than a dozen, which is then stopping with some more:

13:19:30
13:20:30
13:22:00
13.26:00
13:26.30
13:26:45
13:27:00
13.29:30
13:37:00
13:40:00
13:42:00
13:45:00
13:47:00
14:25:00
14:56:00 - located
14:08:00
14:17:30
14:18:00
etc...
And no one is reporting this, what are they waiting for?

Only see P waves, do not see well the S or are not, because they are waves in fluids, and very long, is what are called Long-Term Events and indicating a depressurization of fluids in depth, or said otherwise, hopefully I am wrong, but it may be the start of renewed activity in Tenerife for the next few days /weeks /months .... , we'll see.

What is an LP? , I leave you this post more than interesting, it even has seismic swarms in Timanfaya.

https://www.researchgate.net/publication...3HXysNhr8k

And a later study, and that there are, there are...

https://masteres.ugr.es/geomet/sites/mas...21uJ2FwG-U

And one more thing, for those of us with the basic level, a very simple presentation, don't miss the slides from 42 to 46 where we talk about these signs and compare.

https://www.slideshare.net/soledador/sis...k63-U79Jr4

With this I do not say that we have an eruption shortly, no one take it that way, there are hardly eruptive precursors, today I am only reflecting an internal activity of the volcano that warns how it is reactivating day by day and as managers of volcanic surveillance, look to elsewhere uninformed, as usual. Since 2016, the island is in a much more active phase, grazing the yellow traffic light, but not even with the consecutive swarms of last year they put it.

Now everything indicates that April-May is going to be busy with producing these swarms in activity cycles of about 9 months and the last one was in July.... don't be surprised by a more serious swarm with these dyes announcing a possible magma-deep injection. As soon as it pressurizes, we will know clearly.

Much encouragement to all the Canary Islands, don't worry, at the moment it doesn't indicate an eruption, but a reactivation. What we lack is information and data as always could be more accurate if I could see other stations or data but I have no access. (Enrique)

[jand]

[jand]

And the GPS deformation in TN-04, TN-06 and TN-08 continues to rise over the past few days.