Alert! Mount Semeru Erupts Again This Afternoon (Friday, 11 September 2026)

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Irfan Fadhlurrahman 11/09/2026 14:59 WIB
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10 Most Active Volcanoes in Indonesia by Eruption Count (1 January 2026 – 11 September 2026)
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Mount Semeru in East Java erupted again on Friday (11/9/2026) at 16:37 WIB. In the past week, this volcano has erupted 27 times.

According to PVMBG via MAGMA Indonesia, the eruption was not visually observed, but registered on seismographs with 25mm max amplitude, 88 seconds duration.

Mount Semeru is at Activity Level III (Alert). No activities are permitted 13km from the peak along Besuk Kobokan, and 500m from the river banks in this zone. As of 2026, 4,574 total volcanic eruptions were recorded nationwide; Semeru leads with 1,781 events.

"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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11 September 2026
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