Mount Semeru Erupts Again This Afternoon (Thursday, 28 May 2026)
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Mount Semeru in East Java erupted again on Thursday (28/5/2026) at 16:18 WIB. Over the past week, Mount Semeru has erupted 29 times.
According to eruption data from the Centre for Volcanology and Geological Hazard Mitigation (PVMBG) via the MAGMA Indonesia application, the observed ash column reached 700 metres above the crater peak, or 4376 metres above sea level.
The ash column was observed white to grey, thick density, drifting southwest. This eruption was recorded on seismograph with maximum amplitude 22 mm and duration 110 seconds.
(Read: Two Months of Sumatra Floods: 1,204 Dead, 140 Missing (Tuesday, 27 January 2026))
Per MAGMA Indonesia volcanic activity reports, Mount Semeru status is set at Level III (Alert). Seismic monitoring on 28 May 2026 06:00–12:00 WIB recorded 20 eruption earthquakes (amplitude 10–22 mm, duration 61–130 seconds), plus 1 emission earthquake (4 mm amplitude, 37 seconds duration).
PVMBG advises: No activities are permitted in the southeast sector along Besuk Kobokan within 13 km of the summit. Outside this zone, all activity is prohibited within 500 m of river banks along Besuk Kobokan, as pyroclastic surges and lahar flows may reach up to 17 km from the peak.
For 2026 up to this date, MAGMA Indonesia logged 2,198 volcanic eruptions nationwide. Mount Semeru (East Java) recorded the highest number with 1,105 eruptions.
(Read: Floods Were The Dominant Disaster Event in Indonesia Q1 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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