Mount Ibu Erupts Again This Afternoon (Monday, December 1, 2025)

Mount Ibu in North Maluku erupted again on Monday (12/1/2025) at 1:55 PM WIT. In the last week, Mount Ibu has erupted twice.

Citing 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 (None meters above sea level).

No visual eruption was observed. The eruption was recorded on a seismograph with a maximum amplitude of 28 millimeters and a duration of 30 seconds.

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According to MAGMA Indonesia's volcanic activity report, Mount Ibu's activity level is at Level II (Alert). Seismic observations on December 1, 2025, from 00:00-23:59 WIT showed 93 eruption tremors with amplitudes of 15-28 millimeters and tremor durations of 36-74 seconds.

Additionally, there were 2 exhalation tremors with amplitudes of 8-10 millimeters and tremor durations of 33-45 seconds, and 15 harmonic tremors with amplitudes of 3-26 millimeters and tremor durations of 41-152 seconds.

PVMBG advises 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 7,134 volcanic eruptions across Indonesia. Mount Semeru in East Java had the most eruptions (2,890 times), while Mount Ibu erupted 2,580 times.

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