Merapi volcano (Java, Indonesia) activity summary 12-28 Mar 2021: growing lava dome, pyroclastic flows

Wed, 24 Mar 2021, 20:41
20:41 PM | BY: T
BPPTKG reported that the lava dome just below Merapi's SW rim and the lava dome in the summit crater both continued to grow during 12-18 March. The 2021 lava-dome volume was an estimated 840,000 cubic meters on 18 March, with a growth rate of about 12,900 cubic meters per day, and continued to shed material down the flank.
A total of three pyroclastic flows traveled a maximum of 1 km down the SW flank. Incandescent avalanches, recorded 211 times, traveled as far as 1.2 km down the SW flank.
The summit lava dome had grown to 65 m tall and had an estimated volume of 950,000 cubic meters with a growth rate of 12,800 cubic meters per day. 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.
Source: Smithsonian / USGS Weekly Volcanic Activity Report 17-23 March 2021

Previous news

Mon, 15 Mar 2021, 10:09
Glowing rockfalls from the active lava dome (image: PVMBG)
The active lava dome continues to grow and produce incandescent rockfall avalanches that descended the SW slope of the volcano. Collapsing parts of the flow generated a small avalanches that lifted an ash plumes (so-called phoenix clouds). ... Read all
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