Mount Ibu Erupts Again Tonight (Thursday, December 11, 2025)

Mount Ibu in North Maluku erupted again on Thursday (December 11, 2025) at 10:51 PM WIT. In the last week, Mount Ibu has erupted 26 times.

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 reach 500 meters above the peak (1,825 meters above sea level).

The ash column was observed to be gray with thick intensity towards the southwest. The eruption was recorded on a seismograph with a maximum amplitude of 28 millimeters and a duration of 54 seconds.

(Read: Floods, the Most Frequent Disaster in Indonesia as of November 28, 2025)

According to MAGMA Indonesia's volcanic activity report, Mount Ibu's activity level is at Level II (Alert). Seismic observations on December 11, 2025, from 00:00-23:59 WIT showed 122 eruption earthquakes with amplitudes of 15-28 millimeters and durations of 37-63 seconds.

Additionally, there were 3 exhalation earthquakes with amplitudes of 6-10 millimeters and durations of 31-56 seconds, and 11 harmonic earthquakes with amplitudes of 2-15 millimeters and durations of 52-123 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 on the northern part of Mount Ibu's active crater.

Throughout 2025, MAGMA Indonesia has recorded 7,306 volcanic eruptions across Indonesia. Mount Semeru in East Java erupted the most (3,007 times), while Mount Ibu erupted 2,632 times.

(Read: Jakarta Road Sections Still Flooded (July 9, 2025, 09:00 AM WIB))