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El Hierro

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jand

#6391
October 20, 2021, 17:10:13 PM
IGN warns of possible Intensity 6 earthquakes; the maximum has been 5 so far
Category: Isla BonitaCreated on Wednesday, October 20 2021

The current level of seismicity continues to be produced by the eruptive process of La Palma, it continues to indicate that it is possible that more felt earthquakes may occur, being able to reach VI intensities (EMS). This was reported by the scientific spokesperson for Pevolca, María José Blanco, in the usual appearance each day.

In this regard, he pointed out that these temples could cause small landslides in sloping areas.

In addition, he pointed out that seismicity continues to be located, mainly, close to the seismicity of the first days, at depths between 10 and 15 km.

There are also earthquakes located at depths greater than 20 km, which in the last hours continue to have a high magnitude. The high values ​​of the amplitude of the tremor signal are maintained, with intensification pulses.

The maximum magnitude observed was 4.8 mbLg of an event at a depth of 39 km, with intensity V EMS. The high seismicity recorded at intermediate and deep depths is part of the same current eruptive process. No significant surface seismicity is recorded.

Magnitude and intensity are two frequently confused terms and, although it is true they have a close relationship, their meaning is completely different. The magnitude is used to quantify the size of the earthquakes, it measures the energy released during the rupture of a fault, while the intensity is a qualitative description of the effects of the earthquakes, it involves the perception of people as well as the damages material and economic suffered as a result of the event.

Recommendations:

Abroad:

If you are outside and there is an Earthquake, find an open place and stay away from structures that could fall to the road and from areas at risk of collapse. For your safety, remember these self-protection tips:
• Go to open spaces.
• Stay away from buildings, balconies, traffic lights, streetlights, power lines, or trees.
• Do not go near areas with danger of landslides.
• Follow the recommendations of the authorities and find out through official channels and the media.
• If you are in a vehicle, slow down and stop the engine when possible, away from buildings and steep areas. Set the emergency indicators and stay in the vehicle until the Earthquake ends.

Inside:

If you are surprised by an Earthquake inside your home, stay calm and follow these
self-protection tips:
• While the shaking lasts, do not go outside.
• Protect yourself under a door frame or some sturdy piece of furniture, such as a table.
• Do not stand near windows.
• If you have to leave your house, disconnect water, electricity and gas.
• In case of evacuation, go down the stairs and do not use the elevator.
• Follow the recommendations of the authorities and find out through official channels and the media.

jand

#6392
October 20, 2021, 21:02:38 PM
The PeVOLCA has ordered the PREVENTIVE EVACUATION of more neighborhoods, this time the ones located south of the urban cap of Tazacorte, this is: Marina, La Countesa, Football Field and, waiting to decide on San Borondon. As confirmed by the mayor of Tazacorte, Juan Miguel Rodriguez, more than 500 people living in these neighborhoods surrounded by banana trees in the area attached to the beginning of the urban shell will be evacuated immediately. The passage of laundry through La Laguna (Los Llanos de Aridane), seems to be unstoppable and will continue to descend, predictably through the northern area of ​​this mountain. Below it is the football field with a nucleus of annexed housing and the Tazacorte cemetery. #lapalma  #newslapalma  #earthquakeslapalma  #volcanlasmanchas #urgentcaislapalma  #emergencypalma  #Palma volcano #Palma volcanovolution #PalmaVolcancumbrevieja  #affectedpalma  #evacuationsestazacorte  #evacuationslapalma

jand

#6394
October 20, 2021, 21:12:16 PM
Latest update courtesy of Enrique.

20:30 20/10/2021 h Canary Islands.- LA PALMA ISLAND ERUPTION.- MAPS OF THE COLLADES-CONTINUES THE ERUPTION AND BY ENERGY WE DON ' T KNOW WHAT WILL TAKE TO END.- PRONOSTIC OF TERREMOTES The most urgent are the two flows that are already affecting the town of La Laguna, the 10 B flow has moved 200 m from yesterday afternoon and 10 c (the most north ), he's moved double, 400 m.. my mother.

The 10 C flow is the one next to the school, which is still standing, but the lava is already affecting it and the fire station is currently on fire, the 10 C seems to progress less. It's the worst, because if it goes on, it wouldn't go south of La Laguna Mountain, but would go north to San Borondon and Tazacorte, although I don't think it will come as the slope turns and goes to the sea, though Several arms of lava come, that would take away a lot of banana trees.

The last of the 10 B is that it has swallowed the gas station and arriving at the crossing and main street and headed downtown to Church and square and moving forward now it must be about 50-100 meters more about this map. Hope this one, 10 B, keeps turning and heads south of Laguna Mountain as it's there.

But this isn't over and I see the next move, a new arm is forming above the old Football field north of the Polygon, which I called 10 E, as it's the one that was above that has gone walking down the northern edge of previous laundry, which could give a new arm that would move even further north than the 10 C flow, in principle bordering it, hopefully stop... this is horrible..

While the 9 C flow going to the sea has stood very close to the cliff, about 80 m and unless you receive another batch of fresh lava will stay there... we'll see what happens.

THE VOLCAN:

The energy does not go down and continues to rise daily, indicating that it takes inertia and strength, so I do not see it stops in no time, but the lava comes out with less resistance, drains better, so shows the slight drop in deformation and that the tremor holds. I have no more news sorry... we have 2-3 weeks left of eruption at least. and from there to months...

SYSMIC PRONOSTIC: The same phenomenon is occurring as in the swarms of El Hierro, there is not so much intermediate seismicity and isolated earthquakes occur becoming more powerful. The latest major Earthquake sets the pattern for the forecast..

es2021unlnj 22:48:00 19/10/2021 21:48:00-17.8192 39 km M 4.8 mbLg IV-V SW MAZO VILLA. ILP

That leaves us two highs. I start with the last Earthquake.. tonight at 24 pm 50 min later and tomorrow. 37 h 25 min where the strongest Earthquake is most likely.

1.- The first high of 4 + would be at 22:30 h IGN, 23:30 h Canary Islands and 00:25 h peninsula.

2-The second maximum of 4 + would be at 10:55 h IGN, 11:55 h Canary Islands and 12:55 h peninsula.

If you keep it up next is 4 +en the first max and 4.5 + in the second max... we'll see what you do, next on the list if you follow is a 4.9-5.0 I leave it there. Let's see if it stops. (Enrique)

Still editing the Post (Enrique)

jand

#6396
October 21, 2021, 07:02:14 AM

jand

#6399
October 21, 2021, 12:58:04 PM
The Malaspina hydrographic ship of the Navy has arrived in Santa Cruz de la Palma to help in the deployment on the west coast of the island of two broadband seabed seismometers (OBS) and obtain with them records from marine areas far from the focus of the eruptions . The ship went to sea on October 11 from the Rota Naval Base (Rota), the Navy reported in a statement.

At first, its objective was to carry out a hydrographic campaign in the waters of the Canary Islands to update the nautical cartography of La Gomera, El Hierro, La Palma and Gran Canaria, following the survey and cartographic production plan of the Instituto Hidrográfico de la Marina. But the volcanic eruption on the island of La Palma has made it necessary to change their plans.

The Higher Council for Scientific Research (CSIC) requested from the Navy, through the Royal Institute and Observatory of the Navy (ROA), a platform for the deployment on the west coast of the island of two broadband OBS.

For this reason, the Malaspina hydrographic vessel was made available to the CSIC for transport from Cádiz and the subsequent anchoring of these seismometers.

The Malaspina docked yesterday morning, October 20, in the port of Santa Cruz de la Palma, as reported by the Navy today.

There he hopes that in the next few days the additional material necessary to anchor the two seabed seismometers will arrive at the Las Palmas Military Arsenal.

The data obtained with them will complement those collected by the seismic stations already deployed on land by the CSIC Institute of Marine Sciences (ICM) of Barcelona. "Given the importance of obtaining records from marine areas far from the focus of the eruptions and the nature of the eruptive phenomenon, the registration campaign with OBS has acquired enormous importance," the Navy stressed.

jand

#6400
October 21, 2021, 16:42:03 PM
The ash could reach El Hierro and the earthquakes on La Palma increase in intensity
The two lava flows that forced new evictions last night have come together and could affect the road that goes to the coast

LRG
The Gran Canarian palms
Thursday, 21 October 2021, 15:47
7
The spokeswoman for the Scientific Committee of Pevolca, María José Blanco highlighted today after the meeting in La Palma that "the arrival of fine ash on the island of El Hierro is not ruled out" since the wind can facilitate the "dispersion of pollutants". In addition, the expert pointed out that although the seismicity in La Palma remains approximately in the same depth zone, it is probable that there will be “more felt earthquakes and that their intensity can reach 6. ” The number of Events has decreased, but the magnitudes they are high or medium high, between 4 and 4.3. It is worrying that earthquakes with an intensity of 6 could occur,not magnitude. The intensity is measured on the scale of the infrastructures affection and there is the possibility that small objects move or unhook and for this reason rules are indicated to be followed by the population ”, he explained.

For his part, Miguel Ángel Morcuende, technical director of Pevolca, related the reasons why last night, at 8:30 p.m., another part of the population of La Palma was evacuated , specifically from the municipalities of La Villa and Puerto de Tazacorte and Los Llanos de Aridane. "It was due to the advance of the streams in anticipation that they could advance towards these neighborhoods."

«The two streams that grew a lot in contribution yesterday are the ones that forced us to take civil protection measures to evacuate neighborhoods located northwest, streams 8 and 10, which have ended up joining. Right now they seem to be heading southwest and passing under the mountain of La Laguna , but, at the same time, it is intersecting some of the valleys that would force us to take another direction, consequently the problem is that the wash jumps towards the next basin and I ended up going down the road towards the coast, that's why we take civil protection measures, ”Morcuende explained.

Today 416 people are in shelters, 47 more than yesterday . Of them 375 are in Fuencaliente and 41 in Los Llanos de Aridane. "Yesterday we evacuated 150 registered people, although in reality we evacuated 45, this means that several registered people had already evacuated by their own means or taken refuge in the houses of other relatives or friends, what we have called friendly shelter," he said.

Regarding the affected area, Morcuende said that as of yesterday there were 825.23 hectares, that is, 17.38 more than the previous day. The maximum width between castings remains at 2,900 meters. And the so-called colada 7, "the one that is theoretically about to reach the sea", has had "some contribution" but it is minimal. "It is practically in the same place as yesterday . It remains almost the same as a week ago at 120-130 meters from the coast ».

Damage to infrastructure is quantified in 1,196 buildings destroyed . Of these, 963 are for residential use, 124 for agriculture, 57 for industrial use, 27 for leisure and hospitality, 10 for public use and 14 for other uses.

jand

#6401
October 21, 2021, 17:49:14 PM Last Edit: October 21, 2021, 17:54:18 PM by jand
The felt earthquakes are at shallower depths now .

Just noticed since 02:30 this morning  none of the earthquakes have been in the deeper depths 30km plus.


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

jand

#6402
October 22, 2021, 01:41:30 AM Last Edit: October 22, 2021, 01:43:46 AM by jand
Update courtesy of Enrique last night.

22:15 21/10/2021 h Canary Isla LA PALMA ISLAND ERUPTION.- MAPS OF THE COLADES - NEW COLADES THREATENING THE LAGUNA.- This is horrible, my post has been deleted already Twice and the truth is that the first thing is what happens in the Location of the Laguna. The volcano follows its own, it won't stop shortly, the tremor goes up a bit and the deformation too, has been inflated slightly.

The 10 B flow (the one that swallowed the gas station) has advanced 300 m and the 10 C flow (which is next to the school and firefighters) has advanced by 400 m and merged into a and have turned south as if the urban helmet dams them to the ground a higher peel and now almost all the lavic material of both flows pushes and goes towards the mountain of the Laguna, west and south, though I record that they keep squeezing something north and could overflow in the next few hours, either in the school area (option1) or below (option 2), hopefully they don't pass and don't overflow or do little.

But there are two problems, as the contribution continues for more than 3 days, eventually will overflow and surround the mountain of the Lagoon in the North. The reason is that there are two more active laundry rimming the north edge:

The first is from the 10 D flow that broke down about 4 days ago in the northern area of the polygon and has gone down the north edge leaving a couple of kipukas or islands of land untouched by the laundry on its way down and now is 400 m above school, 1-2 days away if it goes fast. will arrive, unless the lava contribution is cut off.

The second is the 10 E flow that started its path in the upper part of the polygon, covered an area and climbed over the old laundry, re-exiting the north of the polygone in the arm at 200 m above the road and it broke down yesterday morning in the same area and it goes down about 400 m behind the 10 D flow and border the north of it.

And this is horrible, the bad news is that either the 10 C flow, as when the 10 D or E arrives in the school area, in principle the forecast is that it will overflow in that area if it is cut off the lava supply of these three channels and will drop in 24-72 h-96 h by the north of the Lagoon Locality, and would also surround north of the LAGuna Mountain 5-6 days, setting a course towards the south side of San Borondon, the Marina and the Tazacorte Football field and the cemetery.

And while in the area south of the Laguna, another flow has reactivated, causing the 10 B to lose strength and very hot and fluent material that progresses very quickly, reactivating the 10 A and moving forward 600 m from yesterday and moving along the north edge of the field of the oldest or 9 C flow in the area next to the SPAR supermarket.

The result of all this is that flow 10 A, with 10 B and 10 C will converge on the same point at the east base of the Mountain of the Lagoon and will form a huge reservoir that when Filled, jumped or climbed over 9 C and down between 9 C and 9 A into the ocean between the mountain of Todoque south and the lagoon to the north.

And don't believe there are two more things... first in the highest area of the polygon is forming another tongue, the 10 F, which was burning a massive transformer with a lot of smoke today. Second thing, in the area above the volcano there is an overflow that could give a new flow that would go further north still in unaffected areas that I have called flow 11 so far and we will see what result. What a scenario.

I'm done with the earthquakes, it's racking up a lot of energy that hasn't released, and possibly dropping it, we've passed the period of 36 h... so the next highs are around 03:30 h IGN, 04:30 h Canary Islands and 05:30 h peninsula. And then 12 h 25 min later at 15:55 h IGN, 16:55 h Canary Islands and 17:55 h peninsula.

More tomorrow... and hopefully better. Cheer up to all Palmeros. Hopefully I'm wrong and it stops. (Enrique)

https://scontent-lcy1-1.xx.fbcdn.net/v/t1.6435-9/s600x600/247269208_1426810711050225_600963791210339149_n.jpg?_nc_cat=100&ccb=1-5&_nc_sid=730e14&_nc_ohc=g6VCBJi17FIAX9qxQma&_nc_oc=AQltbrW7NjUIUkI-BDG97TKDVmYdcJ0TLQjbcw-HYLfYiHa93BLku08I_MSFB2MVNPY&_nc_ht=scontent-lcy1-1.xx&oh=50a8e849c230dd9e68a772878dc8eb13&oe=6198292C


https://scontent-lcy1-1.xx.fbcdn.net/v/t1.6435-9/s600x600/247855991_1426810757716887_8971289629872796339_n.jpg?_nc_cat=104&ccb=1-5&_nc_sid=730e14&_nc_ohc=5itWlNRDi6oAX8MlGNx&_nc_ht=scontent-lcy1-1.xx&oh=1a64e375b2a54c9cb154664e39a5e03a&oe=61967EFA

https://scontent-lcy1-1.xx.fbcdn.net/v/t1.6435-9/s600x600/246546900_1426810804383549_655368519548263582_n.jpg?_nc_cat=110&ccb=1-5&_nc_sid=730e14&_nc_ohc=f-Yn0Kyea0sAX8sw9-2&_nc_ht=scontent-lcy1-1.xx&oh=bec507853ca4bc49fbdb999e5c85a957&oe=6195BA19

jand

#6404
October 22, 2021, 03:27:01 AM Last Edit: October 22, 2021, 03:32:35 AM by jand
Nine earthquakes in only 35 minutes.


3.2 mbLg N FUENCALIENTE DE LA PALMA.ILP
2021/10/22 02:15:53
10


3.0 mbLg
NE FUENCALIENTE DE LA PALMA.IL
2021/10/22 02:11:43
eleven


2.8 mbLg
SW VILLA DE MAZO.ILP
2021/10/22 02:09:25
14


3.1 mbLg SW VILLA DE MAZO.ILP
2021/10/22 02:07:11
eleven


2.5 mbLg
SE VILLA DE MAZO.ILP
2021/10/22 01:56:40
fifteen


3.0 mbLg
NE FUENCALIENTE DE LA PALMA.IL
2021/10/22 01:55:04
10


2.4 mbLg
ATLANTIC-CANARY ISLANDS
2021/10/22 01:52:00
fifteen


2.7 mbLg
SW VILLA DE MAZO.ILP
2021/10/22 01:39:14
12


2.5 mbLg
SW VILLA DE MAZO.ILP
2021/10/22 01:16:04
9


2.9 mbLg
NE FUENCALIENTE DE LA PALMA.IL
2021/10/22 01:13:51
12


3.4 mbLg NE FUENCALIENTE DE LA PALMA.IL
2021/10/22 01:10:19
10


2.9 mbLg
N FUENCALIENTE DE LA PALMA.ILP
2021/10/22 01:07:52
10



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

jand

#6406
October 22, 2021, 12:24:45 PM
Why doesn't the lava melt the volcano itself?
The nesting wall is made of an older volcanic material with a higher melting point. In addition, pressure and thermal conductivity influence

We are seeing these days, in the eruption of the new volcano on La Palma , how the lava destroys what it finds in its path and, however, as the question says, it does not melt the volcano itself. In principle, all the elements that have a melting point lower than the temperature of the lava itself , which has values ​​between 800 ° C and 1200 ° C, are swallowed up by the washings and integrated into their mass: homes, roads, furniture urban, industrial and agricultural facilities, etc.

However, we see that what in geology we call "nesting rock" resists. This embedding rock is the material that magma passes through on its ascent to the surface and its exit to the outside. The reasons why it is not founded are several. The main one is that the material that rises from the earth's mantle and ends up leaving through the mouths of the volcano is a fluid rock of a baseitic nature that is at a lower temperature than that required to melt the rock it passes through. This rock that forms the nesting wall has a different composition than the one that rises because it is an older volcanic material with a higher melting point.


In addition, pressure influences. The rock that forms the volcanic structure is subjected to greater pressure than the elements on the surface. The latter only suffer atmospheric pressure, but the rocks inside are also under what we call lithostatic pressure, which is the pressure exerted by the overlapping layers of material. The higher the pressure, the higher the melting point. So this characteristic adds to the difficulty for the lava to destroy the rock that forms the cone of the volcano.

The rock of the volcanic building is a kind of fusion armored chest, mainly due to its nature
And there is yet another reason to add: rocks have low thermal conductivity, and more so if they contain water. I give you an example to give you an idea: under the same conditions, while copper has a thermal conductivity of 385 W / Km, olivine (a mineral very present in volcanic rocks) has a thermal conductivity of 5 W / Km This means that the temperature and heat of the magma, as it ascends through the volcanic structure, hardly spreads and interferes little with the rock it passes through.

But just because it doesn't melt it doesn't mean it doesn't alter it in some way. This ascending magma does leave a certain trace on the walls that is called anathexis or anathexis, which is a partial fusion of the rocks; an aureole of contact that is fading. And it is partial because, as you know, the rocks are composed of different minerals and not all those that make up the nesting wall have the same melting point, so some are more affected than others by the temperature of the rising lava.

In conclusion, the answer to your question is that the rock of the volcanic building is a kind of chest armored to fusion, mainly due to its nature, since the melting point of these rocks is higher than the temperature of the rising magma; to the higher pressure to which they are subjected, which, in turn, also increases their melting point, and to the low thermal conductivity of rocky materials that barely propagate heat.

Rosa María Mateos is a doctor in Geology and researcher at the Geological and Mining Institute of Spain IGME-CSIC

jand

#6408
October 22, 2021, 15:59:52 PM
It worries that the pressure of the lava will turn the laundry towards Tazacorte
The fine ash from the La Palma volcano could affect three islands: La Gomera, El Hierro and part of Tenerife, but it will not affect flights

La Palma volcano stream 8, which is actually the sum of the two streams that forced residents of the Villa and Puerto de Tazacorte and Los Llanos de Aridane area to evict on Wednesday night, is practically stopped, but behind "there is a lot of pressure." For this reason, Miguel Ángel Morcuende, technical director of Pevolca, advanced today, they are worried. «The lava flow further to the northwest forced us to take civil protection measures the night before and now it has already slowed down within La Laguna itself. She is standing at the old school in La Laguna. However, it is receiving a lot of input from behind", he claimed. That is why they are “waiting to see if the 7 reaches the sea or not and if the 8 heads south of the Todoque mountain or if it moves to the northeast, following the path of the towns that we were forced to evacuate the day before yesterday at night and take the road to Tazacorte ».

Until it is defined, Morcuende added, the fact that evicted residents can return to their homes will not be assessed.

For her part, Carmen López, a scientist at the National Geographic Institute, highlighted at the press conference after the Pevolca meeting in La Palma that the ash cloud is "arranged towards the south and is expected to turn west during the early morning." And it is not ruled out that fine ash reaches El Hierro, La Gomera and part of Tenerife. However, due to the wind, the operation of the airports will not be affected. The plume of smoke has reached 2,800 meters, he noted.

Regarding seismicity, López explained that as in the first days, earthquakes 10-15 kilometers deep have increased in frequency and those more than 20 kilometers deep are of "high magnitude, but less frequent." The highest recorded magnitude has been for an event 38 kilometers deep that reached 4.4. And as they have already advanced this Thursday, it is possible that there will be earthquakes of intensity greater than 6 that can cause "small landslides", for which he asked for caution. What is also appreciated is that there are "significant levels of suspended particles of less than 10 microns", which is why both López and Morcuende asked the population to use FFP2 masks outside.

The affected area so far occupies 855.72 hectares , 20.49 more than on Thursday, and the maximum width between flows is 2,900 meters.

Looking at the satellite data, Morcuende recalled that there could be malfunctions. Thus, while 2,122 buildings are affected by this route and 137 at risk, a total of 2,259, according to data from the cadastre would be 1,280 of which 1,030 are for residential use .

López also highlighted that the volcano has expelled some 28,700 tons of sulfur dioxide, and explained that in previous days other lower figures could have been given because it is very difficult to make the measurements. However, she added, scientists and experts already knew that the numbers were underestimated.

The IGN scientist also recognized that they have drawn a pattern between the El Hierro volcano and the La Palma volcano in terms of the depth level at which the earthquakes occur.

jand

#6409
October 22, 2021, 17:40:14 PM

17:30 22/10/2021 h Canary Islands.- LA PALMA  ISLAND ERUPTION.- COLADES STOP AND GIVE US A BREATH-UNDER DEFORMATION, TREMOR AND TERREMOTES AND ERUPTION FOLLOW.- The volcano is strangely quiet in the ruckus these days, today it took a break in the destruction of the flow that has suddenly stopped. The flow of lava has been cut or stuck somewhere and is accumulating, causing the flow to rise in height, we'll see where it bursts, hopefully it will go to the ocean for the already devastated area, which is the area where least damage would do.

But let no one deceive, this is just a breath or a high, because you just have to see it as it throws pyroclastic material by several mouths and the lava that comes out many others, which has formed a at the base of the cone on its side northwest a slack or deep lavic canal, coinciding with the alignment of the intruding dam and already a lava tube in some areas and seen as I say clearly on the northwest face of the volcano. And watch out, which has also eroded the existing ground, causing a deep ditch at its exit and continues to feed flow  to the lower flow.

The deformation has dropped a bit, but the tremor has gone up a bit, this translates to the volcano is draining the magma that comes from lower levels in a more efficient way, which makes it seem calmer, but it continues to shed a lot of material ..

LAVA OUTPUT ON CONE BASE BEFORE 20:
https://www.youtube.com/watch?v=aKUT1mbBMjk

YESTERDAY, THE SAME SITE:
https://www.youtube.com/watch?v=nQE0lQRw13A

I keep editing the post (Enrique)

https://scontent-lcy1-1.xx.fbcdn.net/v/t1.6435-9/247619627_1427317164332913_2040355115827838878_n.png?_nc_cat=103&ccb=1-5&_nc_sid=730e14&_nc_ohc=GJySkCPaygAAX9kYt07&_nc_ht=scontent-lcy1-1.xx&oh=e6fdb79a49103e9b32a24cfad849c6e2&oe=6197490D

https://scontent-lcy1-1.xx.fbcdn.net/v/t1.6435-9/244662806_1427317204332909_8160104107331259719_n.png?_nc_cat=105&ccb=1-5&_nc_sid=730e14&_nc_ohc=9I8eYOs2Wd0AX84htaN&_nc_ht=scontent-lcy1-1.xx&oh=c1643ddb585b151cb4e1e9f13d91dafa&oe=619A28E9


https://scontent-lcy1-1.xx.fbcdn.net/v/t1.6435-9/247609627_1427317257666237_3844222203909031681_n.png?_nc_cat=108&ccb=1-5&_nc_sid=730e14&_nc_ohc=lgJhf45HqIIAX8WzmoN&_nc_ht=scontent-lcy1-1.xx&oh=97911a9618ac0440c96663deda0075d4&oe=6198731E


https://scontent-lcy1-1.xx.fbcdn.net/v/t1.6435-9/247454765_1427317337666229_5921066381752437068_n.png?_nc_cat=106&ccb=1-5&_nc_sid=730e14&_nc_ohc=OjhkoYG8nWkAX-np7io&_nc_ht=scontent-lcy1-1.xx&oh=ebba3588617042b3e31b2f4b60169ff3&oe=619989CE

jand

#6410
October 22, 2021, 17:50:18 PM
Drone view over the lava flows today.

https://www.youtube.com/watch?v=K3bCYa6KJDM

jand

#6411
October 22, 2021, 17:53:06 PM

jand

#6412
October 22, 2021, 18:20:52 PM

By the way we had another episode of spasmodic tremor today from 14:00 to 14:28 h that ended abruptly with a 3 Earthquake. 9... curious and indicating another new lava contribution from the depths. By the way when these seismic trains or spasmodic tremors occur, they must crunch and sound all the timbers of the vibrant old houses. (Enrique)

https://scontent-lcy1-1.xx.fbcdn.net/v/t1.6435-9/247471242_1427341324330497_3172678185799055718_n.jpg?_nc_cat=103&ccb=1-5&_nc_sid=dbeb18&_nc_ohc=pFiHRO7lvbYAX8GMXM9&tn=LqcKW8-AD3xBRzWk&_nc_ht=scontent-lcy1-1.xx&oh=b7c71c43302d4e51a53bb444b5c20505&oe=6198A147

jand

#6413
October 23, 2021, 06:12:30 AM
How to act in the event of an earthquake?
Pevolca and Involcan summarize a series of recommendations in light of the increase in seismicity on La Palma

Faced with the foreseeable increase in seismicity, with earthquakes of up to 5 magnitude and VI intensity, classified as "slightly damaging" indoors , Pevolca and Involcan recall and summarize the main recommendations to the population of La Palma. So far, the highest magnitude seismic movement has been 4.8. These are the recommendations of the Pevolca:

Before the earthquake: Both at home and in the workplace, take preventive measures: reinforce the shelves, fix lamps and remove large objects from the furniture.

1. If you are outside and there is an earthquake, find an open place and stay away from structures that could fall onto the road and from areas at risk of collapse.

- Go to open spaces.

- Stay away from buildings, balconies, traffic lights, streetlights, power lines or trees.

- Do not go near areas with danger of landslides.

- Follow the recommendations of the authorities and find out through official channels and the media.

- If you are in a vehicle, slow down and stop the engine when possible, away from buildings and steep areas. Set the emergency indicators and stay in the vehicle until the earthquake ends.

2. If you are surprised by an earthquake inside your home, stay calm and follow these self-protection tips:

- While the shaking lasts, do not go outside.

- Protect yourself under a door frame or some solid piece of furniture, such as a table.

- Do not stand near windows.

- If you have to leave your house, disconnect water, electricity and gas.

- In case of evacuation, go down the stairs and do not use the elevator.

- Follow the recommendations of the authorities and find out through official channels and the media.

TOPICSThe Palm

jand

#6414
October 23, 2021, 12:15:01 PM
Almost 40 earthquakes on La Palma since midnight, several of magnitude 3.9
The IGN has registered from 00.00 hours this Saturday and until 06.30 some 37 earthquakes south of Cumbre Vieja

The National Geographic Institute (IGN) has registered from 00.00 this Saturday until 06.30 some 37 earthquakes south of Cumbre Vieja, in La Palma, several of them of magnitude 3.9 in Fuencaliente and Mazo .

In the case of the first municipality, three earthquakes of magnitude 3.9 and intensity 4 took place at 00.54, 05.58 and 06.07 hours at a depth of between eleven and thirteen kilometers .

Meanwhile, as far as Mazo is concerned, the largest earthquake was at 02.19 hours, also 3 , 9, but at a depth of 35 kilometers, locating another of 3.8 at 04.00 hours at 37 kilometers .

In general, seismicity remains stable at medium and stable depths, but it is not ruled out that in the coming days the earthquakes will gain in intensity and may reach six.

SOME 6,600 PEOPLE EVACUATED

After the preventive evacuations last Wednesday, the total number of people evicted since the beginning of the emergency stands at around 6,600 .

Regarding the area affected by the eruptive process is 845.72 hectares, 20.49 hectares more than the data made public yesterday, and the maximum width between the extreme points of the flows remains at approximately 2,900 meters, although within of this extension there are areas that have not been affected by lava.

The buildings destroyed or damaged, according to the data provided by the Cadastre, amount to 1,280 buildings, of which 1,030 are for residential use, 132 for agriculture, 64 for industrial use, 30 for leisure and hospitality, 11 for public use and 14 for other uses.

Finally, the affected crop area currently reaches 258.23 hectares, of which more than 56%, 144, 93 hectares, correspond to banana crops.

TOPICSLa Palma , La Palma volcano , Volcanic eruptions

jand

#6415
October 23, 2021, 12:19:19 PM

Durante la mañana de hoy se ha derrumbado parte del cono principal. Imágenes de las 11.30 (hora canaria) desde la carretera de S. Nicolás (Tacande) / During this morning part of the main cone collapsed. Footage at 11.30 (Canarian time) from S. Nicolás Road (Tacande)


https://twitter.com/involcan/status/1451860618852585474

jand

#6417
October 23, 2021, 15:02:05 PM
Latest update courtesy of Enrique.

23/10/2021 13:45 h Canary Islands.- LA PALMA ISLAND ERUPTION.- NEW COLLADA BY THE NORTH BORDE IN THE HIGH Police AREA, BIGGEST VOLCANO, NEW MOUTHS, NEW COLLAPSE AND MORE GASES AND LAVA.- This doesn't stop, every day I see bigger the volcano that doesn't even stop, and it has more eruptive points and bigger, right now it has 4 mouths throwing pyroclasts, the more south also ash and water vapor occasionally due to the phreatomagmatic interaction that continues to occur and the northern fountains of lava and splashes with some lavic overflow. The last of these overflows at this emission point has dragged part of this meeting a small collapse of the pyroclast cone.

Down towards the northwest of those 4 mouths there are several more for which a lava torrent comes out along a trench or fissure that changes every day and where the dam is taking its main contribution of lavic material that It goes to laundry and it fits further north, causing the lava to go further and further north.

To say this is one of the best specialized eruptive mouth volcano videos I've seen in my life. and therefore the post goes to the work of the IGME, CSIC and IEO people and so many other research agencies who are doing an impressive job in this eruption. These scientists need them and the successive governments we've had the last 20 years all they want to do is shut them down, though they don't realize how necessary they are.

https://twitter.com/i/status/1451872810654130181

THE EARTHQUAKES AND THE WARNING.. Tonight has been moving and although I found it more intense, they have finally reduced them. I hope it is the same sale as other times, and not a higher one, because that has consequences, the first is that they will confuse all the world and Spanish scientists working with the IGN data not able to give a correct diagnosis of what it's happening., with the risk that poses.

es2021utonk 28.5602 23/10/2021 06:07:00-17.8315 11 km IV M 3.9 mbLg NE PALM FUENCALIENT. IL IL
es2021utogi 28.5543 23/10/2021 05:58:39-17.8302 13 km III-IV M 3.9 mbLg NE PALM FUENCALIENT. ILP
es2021utrfj 28.5754 23/10/2021 07:28:27-17.8160 36 km III-IV M 4.3 mbLg SW VILLA DE MAZO. ILP

With these data the curve of seismic energies released accumulated it is observed that right now the curve is in a downward trend, which doesn't make me much seeing how the volcano is, and only by changing to 4.5 the last Earthquake, follow the behavior linear from these last few days. This is why I already say, my diagnosis is not accurate because of IGN. So either we're going to have a 4.4 or more shortly or I'm missing energy... or the volcano starts to drop its activity, which we'll confirm in the next few days if this trend follows.

COLADAS: Flow continues to swell in the Laguna area and so far there has been no more remarkable progress, but in the highest area of the polygon there has been a flood of lava going along the northern edge of the flow field, yet in the highest area of the polygon, although it doesn't seem to have much flow, it's soon but we have to watch, because if it continues downhill, it will reach the lagoon where the school is.

I conclude by commenting that yesterday I had some fever and it's that I caught a cold, so I didn't put the post of the night, I slept, fortunately it was not necessary because there was nothing new reviewable on the map of flows, today yes, as soon as I can put it up this afternoon.
(Enrique)

jand

#6419
October 23, 2021, 15:36:50 PM
The volcano of La Palma continues to feed all the lava flows
The reconfiguration of the cone this morning brings more lava especially to the new fajana and the language of La Laguna

The reconfiguration of the volcanic cone of La Palma this morning, especially of the so-called «conelete» has meant that all the streams are receiving «feeding» although the 1 stands out, which is the one that goes to the new fajana, that is, to the sea, and 8, which at the moment is still practically stopped in La Laguna and which is increasing "in thickness and width." This was explained today by the technical director of Pevilca, Miguel Ángel Morcuende, in the appearance after the meeting with the scientific committee.

Those are the two most interesting things ”about today's changes, he said. "Let's not forget that the committee informs us that there are several lava tubes working, that means that other washes are also fed, although these (1 and 8) are the most important".

Morcuende stressed what he already said yesterday, worries the pressure of the lava on the wash that is standing in La Laguna . “We have had small spills to the northwest that have joined the laundry 8. What these spills have done is that it grows slightly in width. Colada 8, although it has a lot of contribution behind it, has not advanced a meter in La Laguna. But we continue to monitor the possible advance either to the north of the mountain as well as to the south and hoping that the advance was towards the south, that would avoid major problems in terms of buildings. "Colada 8 continues to cause us concern," he added.

For her part, Carmen López, from the National Geographic Institute (IGN) explained that the gas column had reached 3,000 meters , but thanks to the favorable trend of the winds, aeronautical operations would not be affected.

With regard to earthquakes , the scientist pointed out that the "trend" of a reduction in earthquakes at medium and deep depths has not yet been confirmed. "They have to spend more days," he said. Even so, "this trend has begun to be identified" and, if confirmed, it would be following "a pattern like that of El Hierro", that is, "deep seismicity disappears first and intermediate seismicity continues and after weeks it also disappears, which would mean is that we could be closer to the end . But still, he said, "it is too early to tell if it is being this way."

The largest Earthquake felt yesterday was of intensity 4 and of magnitude 4.3 .

The emission of sulfur dioxide is at "high" values, specifically 31,600 tons per day, and that of carbon dioxide "continues to reflect a downward trend of 623 tons per day." These observations, stated López, "are consistent with the eruptive process."

Experts continue to recommend the use of FFP2 masks, although levels of particles below 10 microns have also been reduced .

Morcuende also recalled that the "accompaniments" to the evicted neighbors continued to remove belongings as well as to carry out cleaning tasks on the roofs, in which the UME collaborates.

There are 373 people housed in Fuencaliente and 56 in Los Llanos de Aridane , making a total of 429 people, 14 more than yesterday, Morcuende explained. Who also recalled that there are 46 other dependent people or people with reduced mobility in social health centers on the island and of them six in the Hospital de Nuestra Señora de los Dolores in the capital of Palma.

Morcuerde also gave the daily data of affected hectares, between yesterday and today only 3.24 hectares have been added, bringing them to 848.96. "The growth is small mainly because the flows have practically not moved," he explained, and the width remains at 2.9 kilometers. Thus, the affected buildings continue to be 1,280, of which 1,030 were residential use.
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