28 Dec IGN statement on the official termination of the eruption
IGN statement on the official termination of the eruption
End of eruption. Pyroclastic activity has ceased but low level seismic events continue.
The observables, both directly on the surface and from the surveillance systems, corroborate the exhaustion of the eruptive process that began on 09/19/2021 at 14:11 UTC, and ended on 12/13/2021 at 22:21 UTC. There is no longer volcanic tremor observed in the seismic signals and deformation do not show a trend consistent with further eruption. Seismicity, which is of low magnitude, is at very low levels at all depths. Despite the current level of seismicity, the occurrence of felt earthquakes is not ruled out. There is no presence of volcanic tremor in the seismic signals. Regarding deformations, they remain without trend in all the stations of the network.
In this eruption a volcanic cone has been built whose highest point is located at an altitude of 1,121 m above sea level, rising about 200 m above the pre-eruptive topography. The estimated volume of the eruptive cone built is 34 Mm3 and the estimate of the total volume of volcanic material emitted exceeds 200 Mm3. 9,090 earthquakes have been located, with 5.1 mbLg being the maximum magnitude recorded and IV-V the highest intensity reached on the EMS scale.
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