Warning! Mount Semeru Erupts Again Tonight (Wednesday, March 5, 2025)

Mount Semeru in East Java erupted again on Wednesday, March 5, 2025, at 7:58 PM WIB. In the last week, Mount Semeru has erupted 49 times.

Based on eruption information from the Center for Volcanology and Geological Hazard Mitigation (PVMBG) via the MAGMA Indonesia application, the height of the ash column was observed to reach None meters above the peak (None meters above sea level).

The visual eruption was not observed. The eruption was recorded on the seismograph with a maximum amplitude of 22 millimeters and a duration of 117 seconds.

According to the MAGMA Indonesia volcanic activity report, Mount Semeru's activity level is at Level II (Alert). Observations of seismic activity on March 5, 2025, from 00:00 to 23:59 WIB, showed 64 eruption quakes with amplitudes of 10-22 millimeters and durations of 51-167 seconds.

Then, there were 7 emission quakes with amplitudes of 4-8 millimeters and durations of 34-56 seconds, and 2 deep volcanic quakes with amplitudes of 25 millimeters, s-p 2.6-2.8 seconds, and durations of 19 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 edge) 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 1,890 volcanic eruptions/eruptions throughout Indonesia. Mount Semeru in East Java had the most eruptions, with 882.