Mount Semeru Erupts Again Tonight (Thursday, 4 June 2026)
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Mount Semeru in East Java erupted again on Thursday (4/6/2026) at 00:34 WIB. Over the past week, Mount Semeru has erupted 27 times.
According to eruption data from the Center for Volcanology and Geological Hazard Mitigation (PVMBG) via the MAGMA Indonesia application, the eruption visual was not observed. Mount Semeru eruption was still ongoing when this report was published.
(Read: Indicated Forest and Land Fire Area in West Kalimantan Province 2016-2025)
Based on MAGMA Indonesia volcanic activity report, Mount Semeru activity status is set at Level III (Alert). Seismic monitoring on 4 June 2026 between 18:00 - 23:59 WIB recorded 20 eruption earthquakes with 12-22 mm amplitude and 51-138 seconds duration.
Additionally, 1 blowing earthquake (3 mm amplitude, 46 seconds duration) and 3 distant tectonic earthquakes (10-40 mm amplitude, 18-85 s S-P interval, 69-233 seconds duration) were detected.
PVMBG prohibits all activities in the southeast sector along Besuk Kobokan up to 13 km from the summit. Beyond that zone, residents must avoid activity within 500 meters of the Besuk Kobokan riverbank, as pyroclastic surges and lahar flows may reach up to 17 km from the summit.
For the year 2026, MAGMA Indonesia has recorded 2,313 volcanic eruptions across Indonesia. East Java's Mount Semeru accounts for the highest number with 1,160 eruptions.
(Read: NTT Hit By Forest Fires For 10 Consecutive Years, BMKG Urges Increased Preparedness)
"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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