Mount Semeru Erupts Again Tonight (Tuesday, 26 May 2026)

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Irfan Fadhlurrahman 27/05/2026 00:05 WIB
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7 Most Active Volcanoes in Indonesia by Eruption Count (1 January 2026 – 26 May 2026)
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Mount Semeru in East Java erupted again on Tuesday (26/5/2026) at 23:29 WIB. Over the past week, Semeru has erupted 16 times.

Per the Center for Volcanology and Geological Hazard Mitigation (PVMBG) via Indonesia's MAGMA application, the observed ash column reached ~500 m above the peak, or 4,176 m above sea level.

The ash column appeared white to grey, thick, drifting southwest and west. This eruption registered a maximum seismograph amplitude of 21 mm with 138 second duration.

Mount Semeru is currently set at Activity Level III (Alert). PVMBG prohibits all activity 13 km from the peak along Besuk Kobokan southeast sector, and 500 m from river banks in that area due to pyroclastic and lahar hazards up to 17 km from the summit. As of May 2026, Semeru has recorded 1,092 eruptions this year.

"Disclosure: This is an AI-generated translation of the original article. We strive for accuracy, but please note that automated translations may contain errors or slight inconsistencies."

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