Suwanosejima volcano (Ryukyu Islands, Japan) - Smithsonian / USGS Weekly Volcanic Activity Report for 25 August-31 August 2021 (Continuing Activity)

mer., 25 août 2021, 06:00
06:00 AM | AUTEUR : VN
JMA reported that 15 explosions at Suwanosejima's Ontake Crater produced eruption plumes that rose as high as 3.2 km above the crater rim during 20-27 August. Large volcanic bombs were ejected 300 m from the crater. Crater incandescence was visible nightly and ashfall was often reported in Toshima village (4 km SSW); a large amount of ash fell in the village on 26 August.
At 1231 on 28 August an eruption produced an ash plume that rose 4.8 km above the crater; weather clouds prevented clear views, though observations indicated that the event continued at least through 1700. The Alert Level remained at 2 and the public was warned to stay 1 km away from the crater.

Source: Japan Meteorological Agency (JMA)
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From: Global Volcanism Program, 2021. Report on Suwanosejima. In: Mayberry, G (ed.), Weekly Volcanic Activity Report 25 August-31 August 2021. Smithsonian Institution and US Geological Survey.

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