If the Cumbre Vieja volcano maintains the current trend It is not ruled out that more people who have had to be evacuated due to the volcanic crisis can return to their homes. This was detailed yesterday by the technical director of the Canary Islands Volcanic Emergency Plan (Pevolca), Miguel Ángel Morcuente, who valued that it would be residents who reside mainly in the north, where there is practically no incidence of polluting gases.
Last Thursday about thirty families from Las Martelas were able to return to their homes due to the stoppage of the lava flows from the wash that forced them to abandon their residences on October 20. Now it is not ruled out that more neighbors can return to their homes, although Morcuente insisted that everything will depend on the emission of gases, since while the flows in the southern area are degassing "enormously" in the northern part, fewer problems are being recorded, so it would be in this area where the return of evacuees is most likely.
Scientists continue to closely monitor the eruption and its effects. Regarding air quality, high concentrations of gases have been registered at specific times in the exclusion zones to the south, but both northern and southern access remained open.
The lava continues to flow through volcanic tubes from which two streams start that move west on previous streams. Therefore, the affected area remains at 1,184 hectares, the lava deltas continue to occupy 48.3 hectares and the maximum width between flows is still 3,350 meters. A total of 548 people continue in hotels and another 43 dependents are being treated in insular health centers. The volcanic crisis has affected 3,046 buildings, 2,896 of which have been destroyed, while the rest are at risk or damaged.
Regarding seismicity, the spokesperson of the Scientific Committee, María José Blanco, explained that the one registered at intermediate depths and more than 20 kilometers is still low, although there is the possibility of more intense earthquakes that are felt by the population. In this regard, he pointed out that the maximum magnitude in recent hours has been 3.7, an earthquake registered on Friday at 9:57 p.m. The tremor level is at low values with little variability.
Air quality continues at good or reasonably good levels throughout the island. With regard to particles smaller than 10 microns (PM10) during yesterday morning, all stations were at reasonably good levels except Las Balsas and La Grama, which are at regular levels. With this air quality index, in Puntagorda, Puntallana, San Andrés y Sauces, Barlovento and Breña Alta it is advisable, for risk groups and sensitive populations, to consider reducing vigorous or prolonged outdoor activities. Starting tomorrow, the arrival of haze may increase the values of small particles due to the entry of Saharan dust.
Asked once again about when the completion of the eruption will occur, María José Blanco reiterated that while the tremor, which indicates the movement of fluids within a conduit or cavity, and the emission of sulfur dioxide (SO2), which indicates that there is magma close to the surface, "they are not at zero or very close to zero, we will not be able to say that the eruption has ended", and added that although these parameters are getting lower and lower, there must be a sustained downward trend, not values newspapers.
The emission of sulfur dioxide (SO2) associated with the plume yesterday was high and the time series of the SO2 emission continues to reflect a downward trend since September 23, when an extremely high emission was recorded. In the case of the non-visible emanations of volcanic gases, the diffuse emission of carbon dioxide (CO2) continues to reflect an emission higher than the average value of the background levels (B) and yesterday it was 6.8 times the average of the levels. background (6.8xB). These diffuse fumes do not represent a danger to people.