Mount Semeru Erupts Early Tuesday Morning, Alert Level Remains at Waspada

Mount Semeru in East Java erupted again on Tuesday, January 14, 2025, at 04:19 WIB (Western Indonesian Time). In the last week, Mount Semeru has erupted 37 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 was recorded on a seismograph with a maximum amplitude of 22 millimeters and a duration of 135 seconds.

According to the MAGMA Indonesia volcano activity report, the activity level of Mount Semeru is at Level II (Alert). Observations of seismic activity on January 14, 2025, from 00:00 to 23:59 WIB, showed 55 eruption quakes with amplitudes of 10-22 millimeters and durations of 54-172 seconds.

Then, there was 1 rockfall earthquake with an amplitude of 2 mm and a duration of 86 seconds, and 6 emission quakes with amplitudes of 2-8 millimeters and durations of 22-90 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 the expansion of pyroclastic flows and lahars up to 17 kilometers from the peak.

During 2025, MAGMA Indonesia has recorded 312 volcanic eruptions/eruptions throughout Indonesia. Mount Semeru in East Java has experienced the most eruptions, with 186 eruptions.