Mount Ibu Erupts Again Tonight (Saturday, September 6, 2025)

Mount Ibu in North Maluku erupted again on Saturday (6/9/2025) at 20:11 WIT. In the last week, Mount Ibu has erupted 32 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 1,000 meters above the peak or 2,325 meters above sea level.

The ash column was observed to be gray with thick intensity towards the west and northwest. The eruption was recorded on a seismograph with a maximum amplitude of 28 millimeters and a duration of 49 seconds.

(Read: Indication of Forest and Land Fire Area in East Kalimantan until June 2025)

According to MAGMA Indonesia''s volcano activity report, Mount Ibu''s activity level is at Level II (Alert). Seismic observations on September 6, 2025, at 00:00-23:59 WIT showed 82 eruption earthquakes with amplitudes of 2-28 millimeters and durations of 27-82 seconds.

Subsequently, there was 1 exhalation earthquake with an amplitude of 8 millimeters and a duration of 42 seconds, and 8 harmonic earthquakes with amplitudes of 2-16 millimeters and durations of 36-94 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 5,988 volcanic eruptions across Indonesia. Mount Semeru in East Java had the most eruptions (2,397 times), while Mount Ibu erupted 2,196 times.

(Read: BNPB Recorded 52 Natural Disasters in Mid-August 2023, Most of Them Forest and Land Fires)