No emission of ash plume or pyroclasts for the first time since the eruption began

No emission of ash plume or pyroclasts for the first time since the eruption began

End of eruption. Pyroclastic activity has ceased but low level seismic events continue.

Group: Geological report
Subgroup: SEIS – EQPOP – VOLTREM – CNEHGHT – ERPTEND
Source: https://www.ign.es/web/resources/volcanologia/html/CA_noticias_2021.html#20210912

Since the last statement, a total of 41 earthquakes have been located on the island of La Palma, three of which have been felt by the population.

The maximum magnitude registered is 3.2 (mbLg), corresponding to the earthquakes of yesterday at 10:15 and 12:19 UTC, at a depth of 13 and 14 km, respectively. The minimum magnitude of the localized earthquake has been 1.0 mbLg.. Most of the earthquakes (34) are located at depths between 9 and 16 km. Three earthquakes have also been located at depths between 36 and 39 km and four at depths between 1 and 3 km.

The amplitude of the tremor signal in the last 24 hours has remained at levels close to the pre-eruptive period.

The network of GNSS permanent stations on the island does not show a clear trend in the deformation of the stations closest to the eruptive centers.

The slight deflation possibly related to deep seismicity has stabilized . The height of the cone is measured , obtaining a value of 1,123 m. above sea level.

In view of the calibrated image at 08:30 UTC, no type of emission can be seen.

This video taken on the 15th of December shows drone footage of the eruptive centres. On the surface of the volcano, sulfur deposits and fumarolic behaviour can be observed. Sourced from IGME (2021).

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