Mount Semeru Erupted Again This Morning, Ash Column Height 400 Meters Above the Peak
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Mount Semeru in East Java erupted again on Sunday (09/08/2026) at 06:43 WIB. Over the past week, Mount Semeru has erupted 58 times.
According to eruption data from the Center for Volcanology and Geological Hazard Mitigation (PVMBG) via the MAGMA Indonesia application, the observed ash column height was approximately 400 meters above the peak, or 4076 meters above sea level.
The ash column was observed white to grey with thick intensity, drifting southwest. This eruption was recorded on seismograph with maximum amplitude 22 mm and 96 seconds duration.
(Read: Floods & Forest Fires: Most Frequent Disasters in Indonesia 2025)
Per MAGMA Indonesia volcanic activity report, Mount Semeru status remains at Level III (Alert). Seismic monitoring on 9 August 2026 00:00-06:00 WIB recorded 31 eruption earthquakes with 10-22 mm amplitude and 80-132 second duration.
Additionally, 2 rockfall earthquakes (2-4 mm amplitude, 61-85 sec) and 1 gas emission earthquake (6 mm amplitude, 38 sec) were detected.
PVMBG warns: No activities allowed in the southeast sector along Besuk Kobokan within 13 km of the summit. Outside this zone, avoid staying within 500 m of river banks along Besuk Kobokan is prohibited, as pyroclastic surges and lahar may reach up to 17 km from the peak.
Throughout 2026, MAGMA Indonesia has recorded 3831 volcanic eruptions nationwide; Mount Semeru leads with 1570 eruptions.
(Read: Fatalities Distribution from Floods & Landslides West Sumatra 9 December 2025)
"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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