The National Geographic Institute (IGN) on Wednesday recorded an earthquake measuring 4.4 on the Richter scale in Mazo, on the Spanish island of La Palma, at the site of the eruption of the volcano Cumbre Vieja at a depth of 36 kilometers. It was the strongest earthquake ever recorded since the onset of seismic activity preceding the volcanic eruption.
IGN rates the intensity of this earthquake from 3 to 4 on a scale of 1 to 12, ranging from weak to widely observed. Those at level 4 do not cause damage, but do cause glass noise, vibrations of suspended elements and, in some cases, seeming furniture shaking. The earthquake, recorded by IGN at 15:33 local time, was felt with greater or lesser intensity on almost the entire island of La Palma. The previous, larger, 4.3, six days ago was also in Mazo, at a depth of 35 kilometers.
– CSIC (@CSIC) October 13, 2021