Mount Ibu Erupts Again This Afternoon, Ash Column Height Around 600 Meters

Mount Ibu in North Maluku erupted again on Wednesday (October 15, 2025) at 12:53 WIT (Eastern Indonesian Time). In the last week, Mount Ibu has erupted 12 times.

Citing eruption information from the Center for Volcanology and Geological Hazard Mitigation (PVMBG) via the MAGMA Indonesia application, the ash column height was observed to be around 600 meters above the peak (1,925 meters above sea level).

The ash column was observed to be gray with thick intensity heading northeast. The eruption was recorded on a seismograph with a maximum amplitude of 28 millimeters and a duration of 66 seconds.

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According to MAGMA Indonesia's volcano activity report, Mount Ibu's activity level is at Level II (Alert). Seismicity observations on October 15, 2025, at 00:00-23:59 WIT showed 80 eruptive/explosion earthquakes with amplitudes of 15-28 millimeters and durations of 33-156 seconds.

Additionally, there was 1 exhalation earthquake with an amplitude of 8 millimeters and a duration of 41 seconds, and 14 harmonic earthquakes with amplitudes of 2-6 millimeters and durations of 28-115 seconds.

PVMBG urges the public around Mount Ibu and visitors/tourists not to engage in activities within a 2.0-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 6,658 volcanic eruptions across Indonesia. Mount Semeru in East Java had the most eruptions (2,620 times), while Mount Ibu erupted 2,384 times.

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