Warning! Mount Ibu Erupts Again This Afternoon (Thursday, December 25, 2025)

Mount Ibu in North Maluku erupted again on Thursday (25/12/2025) at 17:57 WIT. In the last week, Mount Ibu has erupted 13 times.

Based on 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 white to grey with moderate to thick intensity towards the northeast and east. The eruption was recorded on a seismograph with a maximum amplitude of 20 millimeters and a duration of 43 seconds.

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

According to the MAGMA Indonesia volcanic activity report, Mount Ibu's activity level is at Level II (Alert). Seismic observations on December 25, 2025, from 00:00-23:59 WIT showed 79 eruption tremors/eruptions with amplitudes of 15-28 millimeters and tremor durations of 31-74 seconds.

Additionally, 1 exhalation tremor with an amplitude of 8 millimeters and a duration of 41 seconds, and 10 harmonic tremors with amplitudes of 2-10 millimeters and durations of 52-101 seconds occurred.

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 7,510 volcanic eruptions across Indonesia. Mount Semeru in East Java erupted the most (3,131 times), while Mount Ibu erupted 2,707 times.

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