Suwanosejima volcano (Ryukyu Islands, Japan) - Smithsonian / USGS Weekly Volcanic Activity Report for 8 March-14 March 2023 (Continuing Activity)
Wed, 15 Mar 2023, 15:00 15:00 PM | BY: VNJMA reported that the eruption at Suwanosejima's Ontake Crater continued during 6-13 March. A total of 18 explosions were recorded, sending ash plumes as high as 2.3 km above the crater rim and ejecting large blocks as far as 400 m from the vent. Crater incandescence was visible at night.
Occasional ashfall was reported in Toshima village (3.5 km SSW). On 8 March grayish-white plumes were seen rising from the vent during an overflight. No other changes were noted compared to the last overflight conducted on 29 September 2022.
The Alert Level remained at 2 (on a 5-level scale) and residents were warned to stay 1 km away from the crater.
Source: Japan Meteorological Agency (JMA)
From: Global Volcanism Program, 2023. Report on Suwanosejima. In: Mayberry, G (ed.), Weekly Volcanic Activity Report 8 March-14 March 2023. Smithsonian Institution and US Geological Survey.
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