Mount Semeru Erupts Again This Afternoon (Wednesday, February 5, 2025)

Mount Semeru in East Java erupted again on Wednesday, February 5, 2025, at 1:05 PM WIB. In the last week, Mount Semeru has erupted 46 times.

According to 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 or None meters above sea level.

The eruption was not visually observed. The eruption was recorded on a seismograph with a maximum amplitude of 21 millimeters and a duration of 97 seconds.

According to the MAGMA Indonesia volcano activity report, Mount Semeru's activity level is at Level II (Alert). Observations of seismic activity on February 5, 2025, from 00:00 to 23:59 WIB showed 43 eruption quakes with amplitudes of 12-22 millimeters and durations of 60-180 seconds.

Furthermore, there was 1 rockfall earthquake with an amplitude of 6 mm and a duration of 39 seconds, and 3 emission quakes with amplitudes of 5-7 millimeters and durations of 44-57 seconds.

PVMBG advises against any activity in the southeast sector along Besuk Kobokan, up to 13 kilometers from the peak (eruption center). Outside this distance, the public should not engage in 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 17 kilometers from the peak.

During 2025, MAGMA Indonesia has recorded 1,047 volcanic eruptions/eruptions throughout Indonesia. Mount Semeru in East Java has experienced the most eruptions, with 532 eruptions.