Warning! Mount Semeru Erupts Again Early This Morning (Saturday, February 1, 2025)

Mount Semeru in East Java erupted again on Saturday, February 1, 2025, at 04:44 WIB (Western Indonesian Time). In the last week, Mount Semeru has erupted 114 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 be approximately None meters above the peak (None meters above sea level).

The eruption was not visually observed. The eruption was recorded on a seismograph with a maximum amplitude of 23 millimeters and a duration of 125 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 1, 2025, from 00:00 to 23:59 WIB, showed 43 eruption quakes with amplitudes of 12-23 millimeters and durations of 55-164 seconds.

Furthermore, there were 9 emission quakes with amplitudes of 3-8 millimeters and durations of 22-129 seconds, and 1 harmonic tremor with an amplitude of 3 millimeters and a duration of 111 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, the public should not engage in activities within 500 meters of the riverbank (river buffer zone) along Besuk Kobokan due to the potential for the expansion of pyroclastic flows and lava flows up to 13 kilometers from the peak.

During 2025, MAGMA Indonesia has recorded 958 volcanic eruptions/eruptions throughout Indonesia. Mount Semeru in East Java has experienced the most eruptions, with 468 recorded events.