Warning! Mount Semeru Erupts Again Tonight (Monday, 4 May 2026)
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Mount Semeru in East Java erupted again on Monday (4/5/2026) at 23:27 WIB. Over the past week, Mount Semeru has erupted 13 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 approximately 300 metres above the summit, or 3976 metres above sea level.
The ash column appeared white to grey with moderate intensity, drifting southward. Mount Semeru eruption was ongoing when this report was published.
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