Mount Semeru Erupts Again This Afternoon (Sunday, 31 May 2026)
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Mount Semeru in East Java erupted again on Sunday (31/5/2026) at 16.49 WIB. Over the past week, Mount Semeru has erupted 55 times.
According to eruption information from the Centre for Volcanology and Geological Hazard Mitigation (PVMBG) via the MAGMA Indonesia application, the eruption visual was not observed. The eruption was recorded on seismograph with maximum amplitude 22 millimetres and duration 140 seconds.
Per MAGMA Indonesia volcanic activity report, Mount Semeru activity status is at Level III (Alert). Seismic monitoring on 31 May 2026 between 06.00-12.00 WIB recorded 17 eruption earthquakes with amplitude 10-22 mm and duration 59-129 seconds.
Additionally, 2 rockfall earthquakes (2 mm amplitude, 37-49 sec duration) and 2 emission earthquakes (3-7 mm amplitude, 28-42 sec duration) were detected.
PVMBG warns all activity is prohibited in the southeast sector along Besuk Kobokan, within 13 km of the crater. Outside this zone, people must avoid activity within 500 m of river banks along Besuk Kobokan, as pyroclastic surges and lahars may reach up to 17 km from the summit.
During 2026 so far, MAGMA Indonesia has recorded 2,251 volcanic eruptions across Indonesia. East Java's Mount Semeru accounts for the highest total with 1,131 eruptions.
(Read: 381 High Risk Forest Fire Hotspots Remained in Indonesia Early 2023)
"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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