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Geological Agency of the Ministry of Energy and Mineral Resources

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Indonesia volcanic activity August-September 2026

37 clusters · 66 sources · last updated

Latest: Indonesia volcanoes erupt simultaneously across multiple regions

Indonesia’s volcanic activity intensified through August and early September 2026. Between August 18 and 20, Mount Ibu, Mount Lewotobi Laki-laki, and Mount Semeru all experienced eruptions. Mount Ibu was placed at Level

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Mount Sinabung volcanic eruption and renewed activity

3 clusters · 37 sources · last updated

Latest: Mount Sinabung shows renewed activity as evacuations begin in North Sumatra

On August 31, 2026, Mount Sinabung in Sumatra erupted, sending a thick column of black volcanic ash approximately 3,500 meters above the peak. The eruption lasted for over an hour and was recorded with a maximum seismogr

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Mount Merapi volcanic activity

3 clusters · 8 sources · last updated

Latest: Mount Merapi releases 2 km pyroclastic flows

Volcanic activity at Mount Merapi has remained high, with the Balai Penyelidikan dan Pengembangan Teknologi Kebencanaan Geologi (BPPTKG) maintaining a level 3 (Siaga) alert status. During the final week of July 2026, mo

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