The number of earthquakes has decreased compared to the previous two days, however, the island experienced the highest magnitude earthquake so far.

The number of earthquakes has decreased compared to the previous two days, however, the island experienced the highest magnitude earthquake so far.

Rapid decrease in the number of seismic events but a high magnitude is maintained.

Effusive/strombolian activity

Source: https://www.ign.es/web/resources/volcanologia/html/CA_noticias_2021.html#20210912

Since the last statement, 39 earthquakes have been located in the southern part of the island of La Palma. Three of these earthquakes have been felt by the
population. At 01:08 UTC today, an earthquake with a magnitude of 5.1 mbLg was registered at a depth of 36 km and felt by the population with a maximum intensity of IV (EMS). This is the largest earthquake since the series began on September 11th. The tremor signal continues at a low level with slight fluctuations in the last few hours. The island’s network of permanent GNSS stations shows a vertical deformation of about 4 cm along with warp to the south- southwest at station LP03, which is closest to the eruptive centres. The height of the cone is measured obtaining a value of 1,128 masl, 1 m less than on the 18th of Nov. Using a calibrated image IGN estimates a column height of 3,500 masl and an ash cloud in the east-southeast
direction at 08:45 UTC.

This video taken on the 19th of November shows the evaporation of rainwater that has fallen on top of the still-hot lava flows. In the background there is an active lava flow Sourced from IGME (2021).

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