Mount Ibu Erupts Again Tonight (Monday, December 29, 2025)

Mount Ibu in North Maluku erupted again on Monday (12/29/2025) at 00.25 WIT. In the last week, Mount Ibu has erupted 32 times.

According to eruption information from the Center for Volcanology and Geological Hazard Mitigation (PVMBG) via the MAGMA Indonesia application, the observed ash column height reached 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 20 millimeters and a duration of 68 seconds.

(Read: Indonesia Has the Most Active Volcanoes in the World)

According to the MAGMA Indonesia volcano activity report, Mount Ibu's activity level is at Level II (Alert). Seismicity observations on December 29, 2025, at 00.00-23.59 WIT showed 83 eruption quakes with amplitudes of 10-28 millimeters and durations of 36-71 seconds.

Additionally, 2 exhalation quakes with amplitudes of 6-8 millimeters and durations of 38-52 seconds, and 17 harmonic tremors with amplitudes of 2-20 millimeters and durations of 48-161 seconds occurred.

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 7,542 volcanic eruptions across Indonesia. Mount Semeru in East Java had the most eruptions (3,141 times), while Mount Ibu erupted 2,728 times.

(Read: Countries with the Most Active Volcanoes in the World, Indonesia Ranks First)