Mount Ibu Erupts Again This Afternoon, Ash Column Height 400 Meters Above the Peak

Mount Ibu in North Maluku erupted again on Saturday (27/9/2025) at 17:50 WIT. In the last week, Mount Ibu has erupted 27 times.

Based on eruption information from the Center for Volcanology and Geological Hazard Mitigation (PVMBG) via the MAGMA Indonesia application, the observed ash column height was approximately 400 meters above the peak (1,725 meters above sea level).

The ash column was observed to be gray with thick intensity towards the south. The eruption was recorded on a seismograph with a maximum amplitude of 28 millimeters and a duration of 78 seconds.

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According to MAGMA Indonesia's volcano activity report, Mount Ibu's activity level is at Level II (Alert). Seismic observations on September 27, 2025, from 00:00-23:59 WIT showed 78 eruption/explosion earthquakes with amplitudes of 14-28 millimeters and earthquake durations of 31-95 seconds.

Subsequently, there were 2 exhalation earthquakes with amplitudes of 4-6 millimeters and earthquake durations of 32-34 seconds, and 21 harmonic earthquakes with amplitudes of 2-28 millimeters and earthquake durations of 30-131 seconds.

PVMBG urges the public around Mount Ibu and visitors/tourists not to engage in activities within a 2-kilometer radius and a sectoral expansion of 3.5 kilometers towards the crater opening in the northern part of Mount Ibu's active crater.

Throughout 2025, MAGMA Indonesia has recorded 6,390 volcano eruptions in Indonesia. Mount Semeru in East Java had the most eruptions (2,510 times) while Mount Ibu erupted 2,305 times.

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