Activity of Klyuchevskoy, Sinabung and in the Reykjanes Peninsula

At Klyuchevskoy, a moderate flank explosive-effusive eruption and gas-vapor emission activity from the summit of Klyuchevskoy volcano continues.

KVERT satellite data showed a significant thermal anomaly on the flank eruption on the northwest slope of the volcano.

The color code for aviation remains orange.

Sources: KVERT & Mirova

An eruption occurred at G. Sinabung, North Sumatra on March 15, 2021 at 18:08 h with an ash plume observed at ± 2,000 m above the summit (± 4,460 m above sea level) . The observable ash columns are gray, with a thick intensity, leaning towards the southwest and the west. This eruption is recorded by seismogram with a maximum amplitude of 15 mm and a duration of 6 min 27 sec.

Currently, Sinabung is in Activity Level 3 / siaga, with recommendations for society and visitors / tourists not to do activities on resettled villages, as well as locations within a 3 km radius of the summit. of Sinabung, as well as 5 km of sector radius for the south-eastern sector, and 4 km for the east-north sector.

Sources: PVMBG, Magma Indonesia and Komunitas Beidar Sinabung

In the Reykjanes Peninsula, as of March 15, a total of 1,800 earthquakes have been detected by the IMO seismic network, including seven M3.0 or more. The strongest M4.3 earthquakes occurred at 10:32 p.m. northeast of Fagradalsfjall Most of the earthquakes detected today were located near Fagradalsfjall and in the evening mostly northeast of Fagradalsfjall.

Between midnight and 5:43 am on March 16, around 500 earthquakes were detected in the Reykjanes peninsula, no earthquakes were measured above M3.0. The activity was mostly centered around Mt. Fagradalsfjall and east of Mt. Þorbjörn.

According to the latest InSAR document of Saturday March 13, there is an opening of 20 cm., and a progression of the dyke towards the southwest, in a line marked by the locations of the earthquakes.

Massive improvements have been made to the cGPS and seismic monitoring networks on the Reykjanes Peninsula. Many stations have been added, with the cooperation of ISOR, the Czech Academy of Sciences and the University of Cambridge with IMO.

Sources: IMO, ISOR