Alert! Mount Semeru Erupts Again Tonight (Monday, 10 August 2026)
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Mount Semeru in East Java erupted again on Monday (10/8/2026) at 19:09 WIB. Over the past week, Mount Semeru has erupted 3 times.
According to eruption information 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: Volcano Eruption Trends in Recent Years)
Based on MAGMA Indonesia volcanic activity reports, Mount Semeru activity status is at Level III (Alert). Seismic monitoring on 10 August 2026 between 12.00-18.00 WIB recorded 24 eruption earthquakes with amplitude 10-22 mm and duration 48-96 seconds. Additionally, 2 distant tectonic earthquakes were detected with amplitude 33-45 mm, S-P interval 18.95-20.58 seconds, and duration 62-131 seconds.
PVMBG urges all activities are prohibited in the southeast sector along Besuk Kobokan, within 13 km from the summit. Beyond this distance, public activities are forbidden within 500 meters from river banks along Besuk Kobokan, as this area is at risk from pyroclastic flow expansion and lahar flows reaching up to 17 km from the summit.
During 2026, MAGMA Indonesia has recorded 3,867 volcanic eruptions across Indonesia. Mount Semeru in East Java recorded the highest number of eruptions with 1,580 events.
(Read: Indonesia Has the Most Active Volcanoes in the World)
"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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