Mount Semeru Erupts Again Today, Ash Reaches 700 Meters High

Mount Semeru in East Java erupted again on Saturday, March 8, 2025, at 5:32 PM WIB. In the last week, Mount Semeru has erupted 98 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 700 meters above the peak (4,376 meters above sea level).

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

According to the MAGMA Indonesia volcanic activity report, Mount Semeru's activity level is at Level II (Alert). Seismic observations on March 8, 2025, from 00.00 to 23.59 WIB showed 53 eruption quakes with amplitudes of 11-23 millimeters and durations of 61-165 seconds.

Then, there were 8 emission quakes with amplitudes of 3-8 millimeters and durations of 42-84 seconds, and 7 distant tectonic quakes with amplitudes of 4-25 millimeters, s-p 12-56 seconds, and durations of 38-105 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 engage in activities within 500 meters of the riverbank (river boundaries) along Besuk Kobokan due to the potential for pyroclastic flow and lava flows extending up to 13 kilometers from the peak.

During 2025, MAGMA Indonesia has recorded 1,981 volcanic eruptions/eruptions throughout Indonesia. Mount Semeru in East Java had the most eruptions with 931.