Mount Semeru Erupts Again This Afternoon (Tuesday, March 3, 2026)

Mount Semeru in East Java erupted again on Tuesday (March 3, 2026) at 16:23 WIB. In the past week, Mount Semeru has erupted 4 times.

Quoting eruption information from the Center for Volcanology and Geological Hazard Mitigation (PVMBG) via the MAGMA Indonesia application, the observed ash column height reached None meters above the peak (None meters above sea level).

Eruption visuals were not observed. The eruption was recorded on the seismograph with a maximum amplitude of 16 millimeters and a duration of 78 seconds.

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According to the MAGMA Indonesia volcano activity report, Mount Semeru's activity level is at Level III (Alert). Earthquake observations on March 3, 2026 from 06:00-12:00 WIB showed 21 eruption/explosion earthquakes with amplitudes of 10-22 millimeters and durations of 59-138 seconds.

Then, 4 emission earthquakes with amplitudes of 4-6 millimeters and durations of 39-117 seconds, as well as 1 distant tectonic earthquake with an amplitude of 15 millimeters, s-p 16 seconds, and a duration of 47 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 lava flows up to 17 kilometers from the peak.

Throughout 2026, MAGMA Indonesia has recorded 826 volcanic eruptions across Indonesia. Mount Semeru in East Java has the most eruptions with 419 occurrences.

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