28 Dec Geological parameters appears to be stabilising
Geological parameters appears to be stabilising
Red traffic light
Reduced seismic activity
Eruptive activity ceases
Since the last statement, a total of 32 earthquakes have been located on the island of La Palma, none of them felt by the population. The maximum magnitude recorded is 3.6 (mbLg), corresponding to yesterday’s earthquake at 12:09 UTC, at a depth of 37 km. Seismicity continues under the central area of Cumbre Vieja in the same areas of previous days, most of the earthquakes (20) are located at depths between 9 and 22 km, and the rest (12) have been located at depths between 32 and 37 km. No earthquakes have been located at depths less than 9 km. The amplitude of the tremor signal remains at low levels and is just as stable as in previous days. As in previous days, the island’s network of permanent GNSS stations 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. Despite fluctuations between 1200-2500 masl in the past few days, the eruptive column height was recorded as 1700 masl heading SW at 08:45 UTC (IGN, 2021). On the 9th of December, several vents in the central and south east cone was low with the exception of sporadic pulses of strombolian activity. Intense gas emissions and small landslides on the east flank were observed today (GVP, 2021).