Asosan volcano (Japan) - Smithsonian / USGS Weekly Volcanic Activity Report for 23 July-29 July 2025 (Continuing ...
Wed, 30 Jul 2025, 14:00 | BY: VN The Japan Meteorological Agency (JMA) reported that unrest at Asosan had decreased. The amplitude of volcanic tremors had increased during 4-7 July but then returned to low levels afterward. During field surveys on 16 and …