Mount Semeru Erupts Again This Afternoon, Eruption Height Reaches 300 Meters Above the Peak
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Mount Semeru in East Java erupted again on Thursday (06/08/2026) at 17.43 WIB. Over the past week, Mount Semeru has erupted 31 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 is around 300 meters above the peak, or 3976 meters above sea level.
The ash column appeared white to grey, thick intensity, drifting southwest and west. This eruption was recorded on seismograph with maximum amplitude 15 mm and 74 seconds duration.
(Read: 10 Most Vulnerable Peat Hydrology Areas to Forest Fires in 2023)
Per MAGMA Indonesia volcanic activity report, Mount Semeru is currently at Activity Level III (Alert). Seismic monitoring on 6 August 2026 06.00-12.00 WIB recorded 19 eruption earthquakes with 10-22 mm amplitude and 58-128 second duration.
Additionally: 3 collapse earthquakes (2-3 mm, 56-63 sec), 3 emission earthquakes (4-5 mm, 39-47 sec).
PVMBG warns: Do not conduct any activity in the southeast sector along Besuk Kobokan within 13 km of the peak. Outside this radius, avoid 500 m from river banks along Besuk Kobokan, as pyroclastic surges and lahars may reach up to 17 km from the peak.
During 2026, MAGMA Indonesia recorded 3764 volcanic eruptions nationwide. Mount Semeru leads with 1543 eruptions.
(Read: Forest Fire Area Indicators in West Kalimantan Province 2016-2025)
"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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