Alert! Mount Semeru Erupts Again Early This Morning (Tuesday, March 24, 2026)

Mount Semeru in East Java erupted again on Tuesday (March 24, 2026) at 04:01 WIB. In the past week, Mount Semeru has erupted 3 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 reached 500 meters above the peak or 4,176 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 129 seconds.

(Read: 295 People Killed by Floods and Landslides in North Sumatra, Here's the Distribution (December 4, 2025))

According to the MAGMA Indonesia volcanic activity report, the activity level of Mount Semeru is at Level III (Alert). Earthquake observations on March 24, 2026 from 18:00-23:59 WIB showed 16 eruption/explosion earthquakes with amplitudes of 15-22 millimeters and durations of 102-125 seconds. Then, 3 emission earthquakes with amplitudes of 4 millimeters and durations of 75-91 seconds.

PVMBG advises against any activities in the southeast sector along the Besuk Kobokan, up to 13 kilometers from the peak (eruption center). Beyond that distance, residents are advised not to carry out activities within 500 meters of the riverbank along the 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 1,129 volcanic eruptions across Indonesia. Mount Semeru in East Java has the most eruptions with 608 events.

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