Madrid — A series of small earthquakes in the Canary Islands of Spain have increased authorities’ alertness to possible volcanic eruptions. One official said Thursday that “intense seismic activity” was occurring off the northwestern coast of Africa.
Authorities have detected more than 4,200 tremors in what scientists call “earthquake swarms” around La Palma since last Saturday. Earthquake swarms are a collection of earthquakes that occur in one area in a short period of time, which may indicate an approaching eruption.
However, officials said there were no signs that an eruption was imminent, and a scientific committee monitoring the activity said Thursday that the number and magnitude of tremors had diminished.
Still, according to the Spanish private news agency Europa Press, the Scientific Committee for Special Civil Protection Plans and Emergency Response to Volcanic Risk could keep the public warning level yellow due to the rapid new surge of earthquakes. I warned that there was sex.
Volcano warnings are announced according to the level of risk and rise in green, yellow, orange and red.
The Commission reported that a depression in the ground up to a depth of 10 centimeters (4 inches) was formed. This is often due to the movement of the magma.
Before the volcano erupts, seismic activity gradually increases and can accumulate over a long period of time.
By Thursday, 11 million cubic meters (388 million cubic feet) of lava had been pushed into Kumbrevieja, the ridge of the dormant volcano in La Palma, where the last eruption occurred in 1971, according to the Canary Islands Volcanological Institute. rice field. According to the institute, it has a magnitude of 3.4.
La Palma has a population of about 85,000.
The institute is telling island staff to monitor changes, including testing well water.
The Canary Islands are a volcanic archipelago consisting of eight islands. At the closest point to Africa, they are 100 km (60 miles) from Morocco.