28 Dec Large blocks transported down rapid lava flows
Large blocks transported down rapid lava flows
Red traffic light
Increase in the number of seismic events
Vertical uplift and subsidence near the eruptive centre
Renewed phreatomagmatic and strombolian activity
Since the last statement, a total of 128 earthquakes have been located in the area, 6 of them felt by the population. 101 of these earthquakes are located at depths 10-15 km and the rest at depths around 20 km. The maximum recorded magnitude is 5.0 (mbLg) corresponding to today’s earthquake at 8:35 UTC, with a depth of 35 km and intensity IV-V. The amplitude of the volcanic tremor signal increased yesterday, today it has decreased to the average values of the last few days. In the last few hours, the tremor signal has increased again. The island’s network of permanent GNSS stations shows a reversal of the elevation recorded between November 24 and 26 at station LP03, which is the 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 1,126 masl. Using a calibrated image IGN estimates at 09:15 UTC, a column height of 1,400 masl and a scattering cloud in the south-southwest direction (IGN, 2021). On 29th November lava flows were observed transporting large blocks downslope while another lava flowing moved at a rate of about 1 m/s. By noon, the vents in the main cone became noticeably less active (GVP, 2021).