Friday, January 28

The cracks in the cone of the volcano can cause collapses inside the crater, but “they do not compromise its stability”


The cracks and fractures registered this Sunday in the secondary cone of the Cumbre Vieja volcano, on the island of La Palma, could evolve and cause landslides and collapses inside the crater. That is, it would have a local effect and would not compromise, at least for the moment, the stability of the volcanic building, since it only affects the upper area, as Carmen López, director of the Central Geophysical Observatory of the National Geographic Institute (IGN), has stated this Monday. ) and spokesman for the scientific committee of Pevolca (Emergency Plan of the Volcanic Plan of the Canary Islands).

López has specified that the cracks have occurred in the cone that was formed in the northeastern sector of the main building. This Sunday afternoon, the Geological and Mining Institute of Spain (IGME) reported the detection of large-opening cracks in the cone and indicated that the phenomenon was being monitored by experts to determine its causes and possible consequences.

In the appearance of this Monday, the IGN spokesperson also pointed out that one of the active streams, the one that arose west of Montaña El Cogote, has already spilled on one of the low islands formed by the arrival of lava. to the ocean water.

For his part, the technical director of Pevolca, Miguel Ángel Morcuende, has reported that the wash that arose on Saturday in the north of the Montoña de Cogote and that destroyed new homes in its path, now runs with less power than those that were They move through the center, while the one located further south is completely stopped.

As Morcuende has indicated, the greatest movement of lava occurs in the central area, largely by lava tubes, so it is not seen on the surface.

The technical director of Pevolca has indicated that this Monday there are 556 people housed in hotels after being evicted from their homes. They are two more than the day before. Of these, 410 are in the Hotel Princess in Fuencaliente, 61 in the Hotel Valle de Aridane and 75 in the H10 in Breña Baja. In addition, there are 43 dependents in social and health centers.

The area affected by the volcanic eruption continues to be, in the absence of new calculations, 1,155 hectares and that of the lava deltas, 48 ​​hectares.

This Sunday there was no possibility of access to the southern area of ​​the affected area due to the concentration of harmful gases. However, during the night the values ​​have not been dangerous, except in the areas of Puerto Naos and La Bombilla.

Carmen López has pointed out that the wind continues in a northwesterly direction, with gusts of 50 and 55 kilometers per hour, with a predominance of the east and south component, so that the orientation of the volcanic plume will continue to favor air operation.

An entry of a humid mass is taking place, with which weak rains could occur and the forecast is that on Tuesday the intrusion of dust from the desert or haze will increase, which in this case will favor an increase in the presence of PM10 particles.

Regarding seismicity, López has declared that it is still low and is located in the same areas, with a maximum magnitude of 3.9 in the last 24 hours.

The tremor continues at medium and low levels with less variability than previous days, and there are no trends in the deformations of the ground, so there is stability, except in the station furthest from the volcanic cone, in which there is a slight deflation. Carmen López has pointed out.

The emission of sulfur dioxide in the volcano plume remains high and reflecting a downward trend since last September 23, and the diffuse emission of carbon dioxide shows a stable trend since November.

The air quality remains between reasonably good and regular in Los Llanos de Aridane, Puntagorda and Tazacorte due to the presence of sulfur dioxide, and due to the accumulation of particles of less than ten microns it has been unfavorable at some point in the La Grama station. -Breña Alta.





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