The streams reach outside temperatures of up to 180 degrees despite the volcano continuing to show depletion


The weakness of the tremor, the temperature of the washings and jameos, and the general stability of all the parameters, have been some of the issues that have been discussed at the meeting this Friday, December 24, of the Steering Committee of the Special Plan for Civil Protection and Attention to Emergencies due to Volcanic Risk of the Canary Islands (PEVOLCA), coordinated by the Minister of Public Administrations, Justice and Security, Julio Pérez.

The PEVOLCA technical director, Miguel Angel Morcuende, he recalled that during Christmas Eve and Christmas, no accompaniments will be produced. This will be repeated on December 31 and January 1, 2022. Likewise, he insisted that, when the evacuated areas can be accessed, it must always be done in a accompanied manner, the homes must be permanently ventilated and wait, minimum 15 minutes to enter it, focusing on not entering underground areas such as semi-buried warehouses or garages. In addition, he explained that there are still areas of very hot casting at shallow depths that oscillate around 180 degrees in temperature.

María José Blanco, spokesperson for the Scientific Committee, noted that the observables, both direct on the surface and from surveillance systems, continue to show signs of exhaustion of the eruptive process. If this trend continues for the next 24 hours, the PEVOLCA Plan would end the eruptive process. However, the end of the eruption does not imply the end of some dangers associated with the volcanic phenomenon, nor the end of the magmatic reactivation in Cumbre Vieja.

The seismicity it continues at very low levels at all depths and the tremor continues at the background noise level. Despite this, earthquakes that can be felt are not ruled out.

Regarding deformation, the episode that began on December 19 at the Jedey station (LP03) persists and requires follow-up, although no variations are observed in the rest of the data and observables. Regarding the visible emission of volcanic gases, it is punctual and sporadic, concentrating in the area of ​​the eruptive centers and in the jameos of the volcanic tubes. In addition, small collapses in the crater walls of the main and secondary cone and existing fissures continue to occur.

During yesterday the air quality due to sulfur dioxide (SO2) it was at good levels in all stations, while the emission rate has been low and very low. This is not related to magma ascent, but to a process of solidification of the superficial magma existing in the conduits of the eruptive center.

The diffuse emission of carbon dioxide (CO2) continues to reflect an emission higher than the average value of the background levels and, in fact, yesterday this diffuse emission was 8.5 times the average of the background levels. In some specific areas of Cumbre Vieja, these diffuse CO2 emanations can represent a danger to people as long as high values ​​of diffuse CO2 flux are registered in areas that are not very well ventilated and / or at heights below one meter from the ground as a consequence. of the possible accumulation of CO2 and decrease of oxygen in the air. At the Los Llanos de Aridane station, a slight magmatic-hydrothermal fraction continues to be recorded in the CO2 in the soil atmosphere, while at the Fuencaliente station it is practically nil.

Regarding the concentration of particles less than 10 microns (PM10), air quality levels are maintained in all stations, although yesterday there was a slight increase in them from noon, not exceeding the daily limit value in none of them. However, during this morning the levels remain between good and reasonably good in all the stations of the network.

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