Mount Ibu Erupts Again This Afternoon (Saturday, August 23, 2025)

Mount Ibu in North Maluku erupted again on Saturday (August 23, 2025) at 11:50 AM WIT. In the last week, Mount Ibu has erupted 26 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 400 meters above the peak or 1,725 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 21 seconds.

(Read: Hotspots for Forest and Land Fires in South Sumatra Increased in Mid-October 2023)

According to MAGMA Indonesia''s volcano activity report, Mount Ibu''s activity level is at Level II (Alert). Seismic observations on August 23, 2025, from 00:00-23:59 WIT showed 150 eruption earthquakes with amplitudes of 6-28 millimeters and durations of 35-98 seconds.

Furthermore, 3 gaseous emission earthquakes occurred with amplitudes of 5-10 millimeters and durations of 34-39 seconds, and 25 harmonic earthquakes with amplitudes of 2-28 millimeters and durations of 47-115 seconds.

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 5,749 volcanic eruptions across Indonesia. Mount Semeru in East Java had the most eruptions (2,301 times), while Mount Ibu erupted 2,109 times.

(Read: 55 Disasters Occurred in Mid-September 2023, Forest and Land Fires Dominated)