28 Dec Pyroclastic bombs ejected 500 m from the vent
Pyroclastic bombs ejected 500 m from the vent
Red traffic light
Reduced seismic activity
Since the last statement, a total of 24 earthquakes have been located on the island of La Palma, and 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, and 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 centres. 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 was measured at 1,124 masl. Using a calibrated image IGN estimated at 08:39 UTC an eruptive column height of 1,400 masl moving in a west-southwest direction (IGN, 2021). During the 11th – 12 th December lava lobes flowed onto new land from the south margins of the lava flow field, destroying land in Las Norias. Intense strombolian activity ejected large bombs as far as 500 m from the vent (GVP, 2021).