Mount Semeru Erupted Again Today, Ash Column Reached 200 Meters Height
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Mount Semeru in East Java erupted again on Thursday (22/10/2026) at 07.34 WIB. Over the past week, Mount Semeru has erupted 7 times.
According to eruption information from the Center for Volcanology and Geological Hazard Mitigation (PVMBG) via the MAGMA Indonesia application, the observed ash column height reached 200 meters above the summit, or 3,876 meters above sea level.
The ash column was observed white to grey with thick intensity heading west. This eruption was recorded on seismograph with maximum amplitude 25 millimeters and duration of 126 seconds.
(Read: Total Combined Personnel Handling Indonesian Forest Fires As Of October 2026)
Based on MAGMA Indonesia volcanic activity reports, Mount Semeru activity status is at Level III (Alert). Seismic monitoring on 22 October 2026 between 00.00-06.00 WIB recorded 16 eruption earthquakes with amplitude 10-22 millimeters and duration 61-183 seconds.
Additionally, 4 rockfall earthquakes with amplitude 4-12 mm and duration 34-100 seconds, plus 1 gas emission earthquake with 7 mm amplitude and 58 seconds duration were detected.
PVMBG advises against all activities in the southeast sector along Besuk Kobokan up to 13 km from the summit. Beyond this area, public are prohibited from activities within 500 meters of river banks along Besuk Kobokan, as there is risk of pyroclastic surges and lahar flows reaching up to 17 km from the summit.
During 2026, MAGMA Indonesia has recorded 5,231 volcanic eruptions across Indonesia. Mount Semeru in East Java recorded the most eruptions with 2,020 events.
(Read: Emergency Budget Realization for 6 Provinces Affected by Forest Fires October 2026)
"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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