Mount Semeru Erupts Again This Morning (Saturday, March 28, 2026)

Mount Semeru in East Java erupted again on Saturday (March 28, 2026) at 05:24 WIB. In the past week, Mount Semeru has erupted 27 times.

Based on eruption information from the Center for Volcanology and Geological Hazard Mitigation (PVMBG) via the MAGMA Indonesia application, the observed ash column height is approximately 600 meters above the peak (4,276 meters above sea level).

The ash column was observed to be gray with thick intensity towards the northeast. The eruption was recorded on the seismograph with a maximum amplitude of 22 millimeters and a duration of 145 seconds.

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According to the MAGMA Indonesia volcanic activity report, Mount Semeru's activity level is at Level III (Alert). Earthquake observations on March 28, 2026 from 18:00 to 23:59 WIB showed 20 eruption/explosion earthquakes with amplitudes of 12-22 millimeters and durations of 80-115 seconds. Additionally, there were 2 emission earthquakes with amplitudes of 4-6 millimeters and durations of 22-50 seconds.

PVMBG advises against any activities in the southeast sector along Besuk Kobokan, within 13 kilometers of the peak (eruption center). Beyond that distance, residents are advised not to carry out activities within 500 meters of the riverbanks along Besuk Kobokan due to the potential for being affected by expanding hot clouds and lahar flows up to 17 kilometers from the peak.

Throughout 2026, MAGMA Indonesia has recorded 1,165 volcanic eruptions across Indonesia. Mount Semeru in East Java has the highest number of eruptions with 632 events.

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