Warning! Mount Semeru Erupts Again Tonight (Sunday, January 12, 2025)

Mount Semeru in East Java erupted again on Sunday, January 12, 2025, at 7:14 PM WIB. In the last week, Mount Semeru has erupted 105 times.

According to 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 eruption was not visually observed. The eruption was recorded on a seismograph with a maximum amplitude of 20 millimeters and a duration of 114 seconds.

According to the MAGMA Indonesia volcanic activity report, Mount Semeru's activity level is at Level II (Alert). Observations of seismic activity on January 12, 2025, from 00:00 to 23:59 WIB showed 62 eruption quakes with amplitudes of 10-22 millimeters and durations of 54-149 seconds.

Furthermore, there were 5 puffing quakes with amplitudes of 3-7 millimeters and durations of 50-66 seconds, and 4 harmonic tremors with amplitudes of 2-9 millimeters and durations of 54-188 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 engage in activities within 500 meters of the riverbank (river buffer zone) along Besuk Kobokan due to the potential for pyroclastic flow and lava flows extending up to 17 kilometers from the peak.

During 2025, MAGMA Indonesia has recorded 268 volcanic eruptions throughout Indonesia. Mount Semeru in East Java has experienced the most eruptions, with 167 eruptions.