Mount Semeru Erupts Again This Afternoon (Thursday, 14 May 2026)
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Mount Semeru in East Java erupted again on Thursday (14/5/2026) at 15:18 WIB. Over the past week, Mount Semeru has erupted 35 times.
According to eruption information from the Center for Volcanology and Geological Hazard Mitigation (PVMBG) via the MAGMA Indonesia application, the eruption was not visually observed. This eruption was recorded on seismograph with maximum amplitude 22 mm and 121 seconds duration.
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Per MAGMA Indonesia volcanic activity reports, Mount Semeru activity status is at Level III (Alert). Seismic monitoring on 14 May 2026 06:00-12:00 WIB recorded 14 eruption earthquakes with 10-22 mm amplitude and 74-147 seconds duration, plus 1 emission earthquake at 6 mm amplitude for 49 seconds.
PVMBG urges all activities are prohibited in the southeast sector along Besuk Kobokan within 13 km of the peak. Outside this zone, no activities are allowed within 500 m of Besuk Kobokan river banks, as pyroclastic flows and lahar may reach up to 17 km from the summit.
During 2026, MAGMA Indonesia recorded 1,972 volcanic eruptions across Indonesia. East Java's Mount Semeru recorded the most eruptions at 1,009 events.
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