Mount Semeru Erupts Again Today, Ash Column Reaches 1,100 Meters Height
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Mount Semeru in East Java erupted again on Friday (8/5/2026) at 12.30 WIB. Over the past week, Mount Semeru has erupted 47 times.
According to eruption information from the Center for Volcanology and Geological Hazard Mitigation (PVMBG) via the MAGMA Indonesia application, the observed ash column reached 1,100 meters above the crater peak (4,776 meters above sea level).
The ash column appeared grey with thick density, drifting north and northeast. This eruption was recorded on seismograph with maximum amplitude 22 mm and 121 seconds duration.
(Read: Indonesia Has The Most Active Volcanoes In The World)
Per MAGMA Indonesia volcanic activity reports, Mount Semeru status is set at Level III (Alert). Seismic monitoring on 8 May 2026 06.00-12.00 WIB recorded 19 eruption earthquakes with 10-22 mm amplitude and 53-144 seconds duration.
Additionally, 1 rockfall earthquake (10 mm amplitude, 101 seconds) and 2 emission earthquakes (7 mm amplitude, 39-61 seconds) were detected.
PVMBG prohibits all activities in the southeast sector along Besuk Kobokan within 13 km of the peak. Outside this zone, public activity is banned within 500 m of Besuk Kobokan river banks, as pyroclastic flows and lahars may reach up to 17 km from the summit.
During 2026, MAGMA Indonesia logged 1,854 volcanic eruptions nationwide. Mount Semeru recorded the highest activity with 959 eruptions.
"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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