27 Dec A new vent opens and displays explosive activity
A new vent opens and displays explosive activity
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Earthquake number drops but magnitude remains >4 mbLg
Since the last statement, 47 earthquakes have been located in the area, and 7 of these earthquakes have been felt by the population. The largest earthquake (4.3 mbLg) occurred at 11:33 UTC on the 18th, with a depth of 37 km. A total of 9 earthquakes have been located at depths around 30 km, the rest of the hypocenters of the period are located at a shallower depth, around 12 km. The volcanic tremor signal maintains a high mean amplitude, with fewer intensification pulses than in the previous 24 hours. 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, while in the stations further away a slight deflation is observed, possibly related to deep seismicity. The height of the scattering cloud measured at 08:00 UTC is estimated to be 5,000 m, climbing 1000 m in 24 hours (IGN, 2021). The lava flow that has moved around the south of Montaña de La Laguna is approximately 100 m from the coastline today. A new vent located between the main cone and 300 m South East of the base, which exhibited explosive phreatomagmatic activity and then strombolian activity (GVP, 2021).
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