Wednesday, October 20

The lava mantle of the La Palma volcano already extends over 400 hectares and the fajana occupies almost 30

The lava from the La Palma volcano already affects about 400 hectares and the marine delta (or fajana) that it has formed in its fall into the sea occupies an area of ​​almost 29.7 hectares, according to the information updated this Monday by the Department of Security National (DSN).

La Palma tries to learn to live under an erupting volcano that changes every night

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The partial collapse of the cone structure last night seems to have joined the eruptive mouths of the volcano, which is causing a greater flow of lava, which at certain points reaches almost a kilometer in maximum width.

The ash mainly affects the southern slope of La Palma and it is not ruled out that finer ash particles may reach El Hierro on this day, according to the DSN.

High cloud cover prevents Copernicus monitoring

The dense cloudiness that has settled over the Aridane valley has prevented the European Copernicus terrestrial monitoring satellite system from updating the evolution of the lava flows from the volcano that erupted on 19 September.

In social networks, Copernicus reports that the very high resolution image captured this Sunday over the Cumbre Vieja area is not valid, due to the amount of cloud cover, for the preparation of a new monitoring map.

Around noon this Monday he plans to make a new attempt.

The number of buildings destroyed since the beginning of its eruption on September 19 until this Saturday was 946, in addition to another 128 possibly affected, according to Copernicus. This means that in a single day, constructions increased by 66, mostly houses, but also implement rooms, warehouses and other facilities, destroyed by the advance of the wash.

Air quality concerns

Given the decline in air quality in areas close to the laundry, it was decided to evict the scientific and emergency personnel, as well as the neighbors who went to collect belongings from their homes. According to this source, the quality of the air in the non-evacuated areas near the volcano’s emission are within normal levels.

On Sunday 16,000 tons of sulfur dioxide (SO2) were emitted, according to the Volcanological Institute of the Canary Islands (Involcan), an amount that could be even higher due to the limitations of measurements made with remote optical sensors type miniDOAS in a land mobile position (with the instrumentation mounted on a moving vehicle), explains Involcan on social media.

The interest in monitoring sulfur dioxide responds to the fact that the emission of this geochemical parameter is “closely” related to the magma emission rate of this type of volcanic systems, adds Involcan. If a downward trend of this geochemical parameter is observed during the eruptive process, it will be an “unequivocal” sign that the eruption is nearing its end, he explains.

Regarding the provision of basic services, the electricity and telecommunications supply operates normally, but not the supply of drinking water and irrigation, which has been affected in some localities of El Paso and Los Llanos de Aridane.

To guarantee the irrigation of the affected plantations, two portable desalination plants are expected to arrive in La Palma this Monday to be installed in the Puerto Naos area and a tanker with a capacity of 30,000 cubic meters has been transferred from the peninsula, which will allow to increase the flow of water for irrigation.

Earthquakes do not stop

The National Geographic Institute (IGN) has located an earthquake of magnitude 3.7 in Fuencaliente early Monday, about 11 kilometers deep, after a night of high seismic activity.

Another of magnitude 3.4, also early in the morning, located in Mazo at a depth of 13 kilometers, has been felt by the population.

Between the other 3.7 earthquake, located at a depth of 12 kilometers in the southwest of Villa de Mazo, around 8.15 p.m. on Sunday, and the latter, registered at 7.20 a.m. today, the IGN has counted up to 40 tremors, all of them distributed between Mazo and Fuencaliente.

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