Mount Ibu Erupts Again This Afternoon (Sunday, August 31, 2025)

Mount Ibu in North Maluku erupted again on Sunday (8/31/2025) at 14:22 WIT. In the last week, Mount Ibu has erupted 40 times.

Citing eruption information from the Center for Volcanology and Geological Hazard Mitigation (PVMBG) via the MAGMA Indonesia application, the height of the observed ash column reached 600 meters above the peak or 1,925 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 78 seconds.

(Read: Volcanic Eruption Trends in Recent Years)

According to MAGMA Indonesia''s volcanic activity report, Mount Ibu''s activity level is at Level II (Alert). Seismic observations on August 31, 2025, from 00:00-23:59 WIT showed 107 eruption earthquakes with amplitudes of 16-28 millimeters and earthquake durations of 31-78 seconds.

Then, 27 harmonic earthquakes with amplitudes of 2-28 millimeters and earthquake durations of 26-283 seconds, and 95 low-frequency earthquakes with amplitudes of 2-10 millimeters and earthquake durations of 17-29 seconds.

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 5,908 volcanic eruptions across Indonesia. Mount Semeru in East Java had the most eruptions (2,367 times), while Mount Ibu erupted 2,159 times.

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