The volcano does not remit in intensity five weeks later
The volcano of La Palma It has been five weeks eruption at full power. Far from remitting, yesterday has added a new laundry and a leak open under the secondary cone, from which abundant liquid lava flows, and in which earthquakes have been constant.
Carmen Lopez, responsible for the volcanic surveillance network of the National Geographic Institute (IGN), points out that it is still too early to know how this new emission center will behave in the future, if it will form a new cone, or if it will be a leak through which lava flows more liquid, like others previously opened.
Moment in which a new mouth has opened in the lower part of the secondary cone of the La Palma volcano, from which abundant lava comes out. EFE / Ángel Medina G.
The more fluid emission of lava makes this advance down the slope with higher speed, over existing castings.
López indicates that yesterday an increase in the signal of the tremor, until reaching a culminating point that coincides with the appearance of that new emitting center. From there it has dropped notably.
A considerable increase in seismicity and explosiveness has also been recorded in recent hours, with several sonic bombs.
There has also been a considerable increase in the number of seismicity and of the explosiveness, with several sonic bombs, until the opening of the new hole in the volcanic building in Cumbre Vieja.
In this regard, Carmen López points out that the volcano “needs a lot of energy” to find new ways out of the lava, and that when the overpressure is released and a constant flow is maintained, this explosiveness disappears.
For the rest, note that the volcano usually experiences its most substantial changes at nightfall or at dawn. According to some colleagues, he behaves like “a child who gives bad nights”.
Concern on several fronts
There are several fronts that have busy and concerned scientists and the steering committee of the Canary Islands Volcanic Emergency Plan (Singer).
The front of the wash stopped at the La Laguna neighborhood, but that continues to receive input in its rear part that sooner or later will end up advancing towards the sea. This has been joined by another that worries: the laundry that comes from the mouth that until now had only been emitting pyroclasts.
This new cast advances at about 50 meters per hour, according to calculations by Geological and Mining Institute, and goes to the area of Corazoncillo, in Las Manchas.
The hope of the crisis cabinet is that this wash will end up joining a previous one and cause no damage, only materials, since that area was one of the first evacuated since the volcano began to erupt on September 19.
Currently there are four active emission centers that contribute load to the washes
In addition, they trust that the abundant accumulation of ash in that area slows down and contributes greater viscosity to that laundry.
Currently, there are active four broadcast centers that contribute load to the flows, and throughout the eruptive process there have been ten, some of which have been activated and closed.
The scientific committee analyzes the “notable increase” in seismicity at different levels. It also notes the “slow trend” of deflation of the terrain at points away from the eruptive center, while the deformation near the cone remains stable.
The Copernicus system publishes its 30th report of the eruption
The European satellite system Copernicus has updated its diagnosis on the devastating effects of the lava from the volcano in Cumbre Vieja, with a second measurement carried out yesterday that raises the scorched surface already 2,146 destroyed buildings, which means an increase of nine more hectares buried by lava in a margin of nine hours.
Our #RapidMappingTeam has released its 3️⃣0️⃣th updated map
It is based on COSMO-Skymed NG radar imagery
As of 24 October at 07:14 UTC:
▶️ Extent of the lava flow: 901.2 ha (+9.3 ha in ~24h, from a new soutern flow)
▶️ 2,146 destroyed buildings (+3) pic.twitter.com/sWlRNgynGe
— Copernicus EMS (@CopernicusEMS) October 25, 2021
In the thirtieth mapping carried out by Copernicus since the beginning of the eruption, it is found that apart from those destroyed there are other 128 buildings partially or possibly damaged, without distinguishing between homes and other types of uses.
According to the data managed by the steering committee of the Canary Islands Volcanic Emergency Plan (Pevolca), with data from the cadastre updated 48 hours ago, there are just over a thousand houses destroyed, apart from implement rooms, hotel and catering establishments or leisure and buildings for other uses.
Copernicus estimates 69.2 kilometers of roads affected by runoff, of which 65.7 have disappeared. The number of people housed in hotels amounts to 439 in addition to another 46 dependents housed in social and health centers.