Suwanosejima volcano (Ryukyu Islands, Japan) - Smithsonian / USGS Weekly Volcanic Activity Report for 9 December-15 December 2020 (Continuing Activity)
JMA reported nighttime incandescence and intermittent eruptive activity at Suwanosejima's Ontake Crater during 4-11 December. A total of 20 explosions were recorded, ejecting bombs up to 500 m away from the crater and producing gray-and-white plumes that rose 1.5 km above the crater rim. Ashfall was reported in Toshima village (4 km SSW).
mer., 9 déc. 2020, 06:0006:00 AM | AUTEUR : VN
The Alert Level remained at 2 (on a 5-level scale).
Source: Japan Meteorological Agency (JMA)
From: Global Volcanism Program, 2020. Report on Suwanosejima. In: Mayberry, G (ed.), Weekly Volcanic Activity Report 9 December-15 December 2020. Smithsonian Institution and US Geological Survey.
mar., 8 déc. 2020, 07:15
Suwanose-jima Volcano Volcanic Ash Advisory: EXPLODED AT 20201208/0653Z FL040 EXTD S OBS VA DTG: 08/0640Z
dim., 6 déc. 2020, 16:30
Suwanose-jima Volcano Volcanic Ash Advisory: EXPLODED AT 20201206/1611Z VA CLD UNKNOWN OBS VA DTG: 06/1610Z