No earthquakes experienced by the local population in 24 hours and no earthquake with hypocentres lower than 10km

No earthquakes experienced by the local population in 24 hours and no earthquake with hypocentres lower than 10km

Reduced seismic activity

Strombolian activity

Group: Geological report
Subgroup: SEIS – VOLTREM – SUB – PLUME – CNEHGHT
Source: https://www.ign.es/web/resources/volcanologia/html/CA_noticias_2021.html#20210912

Since the last statement, a total of 24 earthquakes have been located on the island of La Palma, none of them has been felt by the population.

The maximum magnitude registered is 3.2 (mbLg), corresponding to today’s earthquake at 5:21 UTC, at a depth of 36 km.

The seismicity continues under the central zone of Cumbre Vieja in the same zones of previous days, most of the earthquakes (21) are located at depths between 10 and 16 km, the rest (only 3) have been located at depths between 35 and 42 km. No earthquakes have been located at depths less than 10 km.

The amplitude of the tremor signal is kept at low levels.

As in previous days, the network of permanent GNSS stations on the island does not show a clear trend in the deformation of the stations closest to the eruptive centers.

In the rest of the stations, the slight deflation possibly related to deep seismicity has stabilized , except in LP01, which continues to register it. The height of the cone is measured , obtaining a value of 1,124 m. above sea level.

In view of the calibrated image at 08:39 UTC, an eruptive column height of 1,400 masl is estimated. in a west-southwest direction.

This video taken on the 12th of December shows the reactivation of strombolian activity. Sourced from IGME (2021)

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