Volcano
Mount Semeru erupts again with plume reaching 1,000 meters
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Mount Semeru, on the border of Lumajang and Malang in East Java, erupted again on Saturday morning (December 20, 2025) with an ash column reaching 1,000 meters above the peak. This marks the 11th eruption since early morning, accompanied by intense seismic activity. PVMBG maintains Alert Level III status and urges residents to avoid hazardous areas.
The Philippine Institute of Volcanology and Seismology (Phivolcs) raised the alert level of Bulusan Volcano in Sorsogon from 0 to 1 after recording 475 volcanic earthquakes since March 15. The activity signals a return to low-level unrest that could lead to phreatic or steam-driven eruptions.
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State volcanologists recorded 256 rockfalls at Mayon Volcano amid ongoing lava flows, the Philippine Institute of Volcanology and Seismology (Phivolcs) said. The volcano has been at Alert Level 3 since January 6. It also generated 41 pyroclastic density currents and elevated sulfur dioxide emissions.
Mount Semeru saw increased seismic activity with 32 avalanche quakes over six hours on Thursday morning (20/11/2025). The Center for Volcanology and Geological Hazard Mitigation (PVMBG) urged the public to avoid the 8 km radius from the peak. The volcano's status remains at Level IV Alert since Wednesday night.
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A volcano on Sakurajima in Kagoshima Prefecture erupted early Sunday, sending a plume of ash and smoke up to 4,400 meters. The weather agency issued ashfall forecasts for parts of Kagoshima, Kumamoto, and Miyazaki prefectures, keeping the alert level at three. No injuries or damage to buildings have been reported.