Warning! Mount Semeru Erupts Again Tonight (Sunday, March 2, 2025)

Mount Semeru in East Java erupted again on Sunday, March 2, 2025, at 00:31 WIB. In the last week, Mount Semeru has erupted 129 times.

Based on eruption information from the Center for Volcanology and Geological Hazard Mitigation (PVMBG) via the MAGMA Indonesia application, the ash column height was observed to reach 300 meters above the peak or 3,976 meters above sea level.

The ash column was observed to be white to gray with moderate intensity towards the west. The eruption of Mount Semeru was still ongoing at the time of this report.

According to the MAGMA Indonesia volcano activity report, the activity level of Mount Semeru is at Level II (Alert). Seismic observations on March 2, 2025, from 00:00 to 23:59 WIB showed 56 eruption quakes with amplitudes of 10-23 millimeters and durations of 59-148 seconds.

Then, there was 1 single rockfall event with an amplitude of 3 mm and a duration of 44 seconds, and 9 emission quakes with amplitudes of 4-8 millimeters and durations of 38-55 seconds.

PVMBG advises against any activity in the southeast sector along Besuk Kobokan, up to 8 kilometers from the peak (eruption center). Outside this distance, people should not carry out activities within 500 meters of the riverbank (river buffer zone) along Besuk Kobokan due to the potential for pyroclastic flow and lahar flows extending up to 13 kilometers from the peak.

During 2025, MAGMA Indonesia has recorded 1,791 volcanic eruptions/eruptions throughout Indonesia. Mount Semeru in East Java had the most eruptions with 843 events.