Suwanosejima volcano (Ryukyu Islands, Japan) - Smithsonian / USGS Weekly Volcanic Activity Report for 25 November-1 December 2020 (Continuing Activity)

Wed, 25 Nov 2020, 06:00

06:00 AM | BY: VN

JMA reported nighttime incandescence and intermittent eruptive activity at Suwanosejima's Ontake Crater during 20-27 November. A total of 34 explosions were recorded, ejecting bombs up to 700 m away from the crater and producing gray-and-white plumes that rose 1.4 km above the crater rim. The Tokyo VAAC noted that ash plumes drifted S and SE.
Ashfall was reported in Toshima village (4 km SSW). Crater incandescence was visible from the morning of 20 November through 22 November. The Alert Level remained at 2 (on a 5-level scale).

Sources: Japan Meteorological Agency (JMA), Tokyo Volcanic Ash Advisory Center (VAAC)
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From: Global Volcanism Program, 2020. Report on Suwanosejima. In: Mayberry, G (ed.), Weekly Volcanic Activity Report 25 November-1 December 2020. Smithsonian Institution and US Geological Survey.

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Tue, 24 Nov 2020, 22:00

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Tue, 24 Nov 2020, 15:30

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Satellite image of Suwanose-jima volcano on 24 Nov 2020

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