Merapi volcano (Central Java, Indonesia) - Smithsonian / USGS Weekly Volcanic Activity Report for 17 February-23 February 2021 (Continuing Activity)

Ср, 17 фев 2021, 06:00

06:00 AM | ПЇЅПЇЅПЇЅПЇЅПЇЅ: VN

BPPTKG reported that the 2021 lava dome just below Merapi's SW rim and the new lava dome in the summit crater both continued to grow during 12-18 February. The 2021 lava dome volume was an estimated 397,500 cubic meters on 17 February, with a growth rate of about 25,200 cubic meters per day; it was 258 m long, 133 m wide, and 30 m high. The summit lava dome was an estimated 426,000 cubic meters, with a growth rate of about 10,000 cubic meters per day; it was 160 m long, 120 m wide, and 50 m high.
Seismicity was less intense than the previous week. Electronic Distance Measurement (EDM) data showed no notable deformation. PVMBG noted that foggy conditions often prevented visual observations during 18-23 February, though sometimes white emissions were observed rising up to 400 m above the summit.
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: Balai Penyelidikan dan Pengembangan Teknologi Kebencanaan Geologi (BPPTKG), Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG, also known as CVGHM)
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From: Global Volcanism Program, 2021. Report on Merapi. In: Mayberry, G (ed.), Weekly Volcanic Activity Report 17 February-23 February 2021. Smithsonian Institution and US Geological Survey.

О НОВОСТИ ВСЕ: Merapi вулкан
О ИНФОРМАЦИЯ: Merapi вулкан

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Wed, 10 Feb 2021, 06:00

Merapi volcano (Central Java, Indonesia) - Smithsonian / USGS Weekly Volcanic Activity Report for 10 February-16 February 2021 (New Activity / Unrest)

BPPTKG reported that the 2021 lava dome continued to grow just below Merapi's SW rim during 5-11 February. The lava-dome volume was an estimated 295,000 cubic meters on 11 February, with a growth rate of about 48,900 cubic meters per day. Incandescent avalanches of material were occasionally visible; they traveled 700 m SW in the upper parts of the Krasak and Boyong drainages during 9-10 February. ... Read all

Wed, 3 Feb 2021, 06:00

Merapi volcano (Central Java, Indonesia) - Smithsonian / USGS Weekly Volcanic Activity Report for 3 February-9 February 2021 (New Activity / Unrest)

BPPTKG reported that the 2021 lava dome continued to grow just below Merapi's SW rim during 29 January-4 February. One pyroclastic flow descended the SW flank as far as 600 m. The 2021 lava dome volume was an estimated 117,400 cubic meters on 4 February, with a growth rate of about 12,600 cubic meters per day. ... Read all

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