Merapi (Indonesia) - Report for 6 January-12 January 2021 - NEW

BPPTKG reported that a new lava dome, first observed on 4 January, continued to emerge just below Merapi?s SW rim during 5-12 January.
Incandescent avalanches were observed 19 times during 4-7 January with material traveling as far as 800 m down the Krasak River drainage on the SW flank.
At 0802 on 7 January a block-and-ash flow traveled down the upper part of the Krasak; the total distance was not observable due to weather clouds, though the seismic data suggested it was small and was not more than 1 km in length.
The event also produced a 200-m-high ash plume.
Similar events were recorded that same day at 1250, 1315, and 1402.
Deformation continued; electronic Distance Measurement (EDM) data continued to measure a distance shortening between points in the NW at a rate of 15 cm per day.
On 7 January BNPB noted that 1,342 residents were housed in evacuation centers.
The Alert Level remained at 3 (on a scale of 1-4), and the public were warned to stay 5 km away from the summit.

Sources: Badan Nacional Penanggulangan Bencana (BNPB) ,Balai Penyelidikan dan Pengembangan Teknologi Kebencanaan Geologi (BPPTKG)

Fonte/Source: Global Volcanism Program/Smithsonian Institution


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