Warning! Mount Ibu Erupts Again This Afternoon (Thursday, December 18, 2025)

Mount Ibu in North Maluku erupted again on Thursday (18/12/2025) at 12:39 WIT. In the last week, Mount Ibu has erupted 15 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 be around None meters above the peak or None meters above sea level.

Visual eruption was not observed. The eruption was recorded on a seismograph with a maximum amplitude of 15 millimeters and a duration of 53 seconds.

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

According to MAGMA Indonesia's volcanic activity report, Mount Ibu's activity level is at Level II (Alert). Seismicity observations on December 18, 2025, from 00:00-23:59 WIT showed 102 eruption/explosive earthquakes with amplitudes of 15-28 millimeters and earthquake durations of 33-117 seconds.

Then, 3 exhalation earthquakes with amplitudes of 3-13 millimeters and earthquake durations of 37-60 seconds, and 11 harmonic earthquakes with amplitudes of 2-26 millimeters and earthquake durations of 48-215 seconds.

PVMBG urged the public around Mount Ibu and visitors/tourists not to carry out activities within a radius of 2 kilometers 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 7,384 volcanic eruptions across Indonesia. Mount Semeru in East Java had the most eruptions (3,046 times), while Mount Ibu erupted 2,669 times.

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