Mount Ibu Erupts Again This Morning (Monday, August 25, 2025)

Mount Ibu in North Maluku erupted again on Monday (8/25/2025) at 10:35 AM WIT. In the last week, Mount Ibu has erupted 3 times.

According to 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 300 meters above the peak (1,625 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 50 seconds.

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

According to the MAGMA Indonesia volcano activity report, Mount Ibu''s activity level is at Level II (Alert). Seismic observations on August 25, 2025, from 00:00-23:59 WIT showed 131 eruption earthquakes with amplitudes of 11-28 millimeters and earthquake durations of 38.36-66.79 seconds.

Then, 1 exhalation earthquake with an amplitude of 3 millimeters and an earthquake duration of 31.68 seconds, and 20 harmonic earthquakes with amplitudes of 2-28 millimeters and earthquake durations of 34.17-170.36 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 5,785 volcanic eruptions across Indonesia. Mount Semeru in East Java erupted the most (2,312 times) while Mount Ibu erupted 2,122 times.

(Read: Volcanic Eruption Trends in Recent Years)