Semeru volcano — the highest volcano on Java — erupted on the afternoon of November 19, 2025, with pyroclastic flows racing at high speed down its slopes.
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Semeru Volcano Erupts In Indonesia, Spewing Powerful Pyroclastic Flows
Headline from Forbes ·
Newest
Climbers at Indonesia’s Mount Semeru safe after sudden volcanic eruption
Indonesian authorities have raised the alert for Mount Semeru volcano to the highest level after a series of eruptions prompted evacuations. The volcano, the highest peak on Java, unleashed avalanches
Mount Semeru in East Java province unleashed searing clouds of hot ash and a mixture of rock, lava and gas that traveled up to 4.3 miles down its slopes.
Semeru volcano — the highest volcano on Java — erupted on the afternoon of November 19, 2025, with pyroclastic flows racing at high speed down its slopes.
Indonesian authorities evacuated more than 900 people and were facilitating the safe return on Thursday of 170 climbers stranded after the eruption of its Semeru volcano.
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Semeru Volcano Erupts In Indonesia, Spewing Powerful Pyroclastic Flows | Since Then