Mount Semeru Erupts Today, Status Alert

Mount Semeru in East Java erupted again on Monday (24/11/2025) at 2:00 PM WIB. In the last week, Mount Semeru has erupted 3 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 around None meters above the peak or None meters above sea level.

No visual eruption was observed. Mount Semeru's eruption is still ongoing when this report was made.

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According to MAGMA Indonesia's volcano activity report, Mount Semeru's activity level is at Level IV (Alert). Seismicity observations on November 24, 2025, from 06:00-12:00 WIB, showed 37 eruption tremors with amplitudes of 10-22 millimeters and a duration of 49-125 seconds.

Furthermore, there were 6 rockfall earthquakes with amplitudes of 3-9 mm and durations of 29-80 seconds, and 4 exhalation earthquakes with amplitudes of 3-6 millimeters and durations of 38-59 seconds.

PVMBG advises against any activities in the southeast sector along Besuk Kobokan, as far as 20 kilometers from the peak (eruption center). Beyond that distance, people should not engage in activities within 500 meters from the riverbanks (river boundaries) along Besuk Kobokan due to the potential for being affected by the expansion of hot clouds and lava flows.

During 2025, MAGMA Indonesia has recorded 7,025 volcano eruptions across Indonesia. Mount Semeru in East Java had the most eruptions, with 2,815 occurrences.

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