Mount Ibu Erupts Again Tonight (Saturday, November 15, 2025)

Mount Ibu in North Maluku erupted again on Saturday (15/11/2025) at 19:09 WIT. In the last week, Mount Ibu has erupted 28 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 be around 500 meters above the peak (1,825 meters above sea level).

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

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

According to the MAGMA Indonesia volcano activity report, the activity level of Mount Ibu is at Level II (Alert). Seismic observations on November 15, 2025, from 00:00-23:59 WIT showed 79 eruption earthquakes with amplitudes of 15-28 millimeters and earthquake durations of 30-72 seconds.

Then, 7 harmonic earthquakes with amplitudes of 2-28 millimeters and earthquake durations of 56-134 seconds, and 108 low-frequency earthquakes with amplitudes of 2-10 millimeters and earthquake durations of 17-29 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 6,960 volcanic eruptions across Indonesia. Mount Semeru in East Java had the most eruptions (2,792 times), while Mount Ibu erupted 2,504 times.

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