Warning! Mount Semeru Erupts Again This Afternoon (Wednesday, January 15, 2025)

Mount Semeru in East Java erupted again on Wednesday, January 15, 2025, at 12:53 WIB (Western Indonesian Time). In the last week, Mount Semeru has erupted 60 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 or None meters above sea level.

The visual eruption was not observed. 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 January 15, 2025, from 00:00 to 23:59 WIB, showed 47 eruption quakes with amplitudes of 10-22 millimeters and durations of 60-200 seconds.

Furthermore, there was 1 single rockfall earthquake with an amplitude of 6 mm and a duration of 71 seconds, and 7 emission quakes with amplitudes of 2-8 millimeters and durations of 13-83 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, people should not carry out activities within 500 meters of the riverbank (river boundary) 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 361 volcanic eruptions/eruptions throughout Indonesia. Mount Semeru in East Java has experienced the most eruptions, with 209 eruptions.