Volcanic activity in Canary Islands 2021

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[TamaraEnLaPlaya]

Some amazing views of lava this evening

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The earthquakes have been picking up again all can be viewed on the link below.


http://www.ign.es/web/resources/volcanol..._KxSOqQ0A8

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https://twitter.com/lsomozalos/status/14...5212178435

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https://www.facebook.com/watch/live/?ref...live_video

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https://www.facebook.com/watch/live/?ref...live_video

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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.

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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.

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Latest update courtesy of Enrique.

21/10/2021 15:45 h Canary Islands.- LA PALMA ISLAND ERUPTION.- THE SECRETS OF MAGMA, THE SPASMODIC TREMOR.- This concept is a difficult thing to explain but simple to understand, we indicates the beginning of magma's journey to the surface after opening or breaking a rock. But what is it?

Everyone has heard the whistling or whistling at a teapot or coffee maker when they're ready or when the pressure cooker weighs starts to blow vapor in blows... because it's the same thing, but in volcanoes. And this volcano was not going to be for less, late afternoon is doing it and it is a very characteristic sound and noise, where it starts to squeak and make more noise than it should, with many earthquakes in a very short time, like a valve that opens and closes several times due to excess pressure or passage of pressurized fluids generating a lot of straight earthquakes or simple signals. Whoever has a clean bottoms in the barracuda aspiration pool that hits a membrane will fully understand what I'm talking about.

The case is that these noises are the ones that indicate that the safety valve opens and lets go magma that goes heading towards the exit conduit and onto the surface, so this signal tells us that the magma supply is newspaper and it is occurring, coming to produce up to twice a day according to days.
Today happened between 7:15 h and 7:42 h UTC (IGN) this curious event, a half hour long but not the first time, indicates pumping and supplying new magma. Before yesterday, October 19, there was another between 8:28 and 8:54 h UTC and three days ago on October 18, twice between 04:04 and the 0 4:32 h, UTC and Another one between 18:08-18:32 h

This spasmodic tremor is not something new and we've seen it in some swarms with this signal of spasmodium tremor that has occurred in the area of the Volcano of Enmedio where it lasted for hours and also during the eruption of the Volcán de El Hierro, En Tenerife en Adeje and in other areas not located or that did not know for sure, because nothing is located.

And as sometimes I saw this sign, now I'm surprised to see it again, the reason is that the signal in those days and those registered today and that I bring you today are so similar.

NOTE 116-19 July 2018 https://www.facebook.com/254020541662587...402400331/

Note 321-19 October 2019

https://www.facebook.com/.../321-terremotos-de-largo...