Mount Ibu Erupts Again Today, Eruption Height Reaches 900 Meters

Mount Ibu in North Maluku erupted again on Wednesday (December 17, 2025) at 4:04 PM WIT. In the last week, Mount Ibu has erupted 11 times.

According to eruption information from the Center for Volcanology and Geological Hazard Mitigation (PVMBG) via the MAGMA Indonesia application, the height of the observed ash column was approximately 900 meters above the peak (2,225 meters above sea level).

The ash column was observed to be gray with moderate intensity towards the northeast. The eruption was recorded on a seismograph with a maximum amplitude of 18 millimeters and a duration of 52 seconds.

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According to the MAGMA Indonesia volcano activity report, Mount Ibu's activity level is at Level II (Alert). Seismic observations on December 17, 2025, from 00:00-23:59 WIT showed 100 eruption/explosion earthquakes with amplitudes of 12-28 millimeters and earthquake durations of 30-100 seconds.

Furthermore, there were 3 exhalation earthquakes with amplitudes of 2-10 millimeters and durations of 33-43 seconds, and 18 harmonic earthquakes with amplitudes of 2-15 millimeters and durations of 27-123 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 recorded 7,371 volcanic eruptions across Indonesia. Mount Semeru in East Java had the most eruptions (3,037 times), while Mount Ibu erupted 2,665 times.

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