Asosan volcano (Kyushu, Japan) - Smithsonian / USGS Weekly Volcanic Activity Report for 22 March-28 March 2023 (Continuing Activity)
Ср, 29 мар 2023, 14:00 14:00 PM | АВТОР: VNThe amplitude of volcanic tremor signals at Asosan increased in December 2022, and then further intensified on 30 January, prompting JMA to raise the Alert Level to 2 (on a scale of 1-5) and warn the public to stay at least 1 km away from the crater. The amplitude fluctuated at high levels for a few weeks, and then decreased on 19 February and again on 14 March. Daily sulfur dioxide emissions had exceeded 1,000 tons per day starting in December 2022; emissions declined to below that threshold by mid-January and remained at lower levels.
At 1100 on 23 March the Alert Level was lowered to 1.
Source: Japan Meteorological Agency (JMA)
From: Global Volcanism Program, 2023. Report on Asosan. In: Mayberry, G (ed.), Weekly Volcanic Activity Report 22 March-28 March 2023. Smithsonian Institution and US Geological Survey.
- О НОВОСТИ ВСЕ: Aso вулкан
- О ИНФОРМАЦИЯ: Aso вулкан
Wed, 1 Feb 2023, 15:00
Asosan volcano (Kyushu, Japan) - Smithsonian / USGS Weekly Volcanic Activity Report for 25 January-31 January 2023 (New Activity / Unrest)
JMA reported that the amplitude of volcanic tremor signals at Asosan increased at around 1200 on 30 January and then increased again around 1220 and remained high. At 1330 JMA raised the Alert Level to 2 (on a scale of 1-5) and warned the public to stay at least 1 km away from the crater. White plumes were visible rising 300 m above the crater rim. ... Read all
Tue, 31 Jan 2023, 04:19
Aso volcano (central Kyushu, Japan): volcanic-seismic unrest, alert status raised to Yellow
The seismic network of the Japan Meteorological Agency (JMA) registered periods of highly increased amplitude tremor at the volcano starting at noon yesterday. ... Read all