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

Mount Semeru in East Java erupted again on Thursday, January 2, 2025, at 02:41 WIB. In the last week, Mount Semeru has erupted 44 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 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 157 seconds.

According to the MAGMA Indonesia volcano activity report, Mount Semeru's activity level is at Level II (Alert). Seismic observations on January 2, 2025, from 00:00 to 23:59 WIB showed 34 eruption quakes with amplitudes of 10-23 millimeters and durations of 53-145 seconds.

Furthermore, there was 1 rockfall earthquake with an amplitude of 3 mm and a duration of 50 seconds, and 7 emission quakes with amplitudes of 2-8 millimeters and durations of 34-62 seconds.

The 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 edge) 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 20 volcanic eruptions/eruptions throughout Indonesia. Mount Semeru in East Java has experienced the most eruptions, with 13 eruptions.