Mount Ibu Erupts Again Tonight, Ash Column Height 700 Meters Above the Peak

Mount Ibu in North Maluku erupted again on Monday (September 22, 2025) at 11:02 PM WIT. In the last week, Mount Ibu has erupted 3 times.

Citing eruption information from the Center for Volcanology and Geological Hazard Mitigation (PVMBG) via the MAGMA Indonesia application, the ash column height was observed at approximately 700 meters above the peak (2,025 meters above sea level).

The ash column was observed to be white to grey with thick intensity, moving towards the west and northwest. Mount Ibu''s eruption was still ongoing when this report was made.

(Read: Indication of Forest and Land Fire Area in Central Kalimantan Province in the Last Decade)

According to MAGMA Indonesia''s volcano activity report, Mount Ibu''s activity level is at Level II (Alert). Seismicity observations on September 22, 2025, from 00:00-23:59 WIT showed 92 eruption tremors/earthquakes with amplitudes of 12-28 millimeters and durations of 37-74 seconds.

Furthermore, there were 5 exhalation earthquakes/tremors with amplitudes of 3-11 millimeters and durations of 35-42 seconds, and 20 harmonic tremors with amplitudes of 2-13 millimeters and durations of 34-147 seconds.

PVMBG urges the public around Mount Ibu and visitors/tourists not to carry out 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 6,280 volcanic eruptions across Indonesia. Mount Semeru in East Java had the most eruptions (2,475 times), while Mount Ibu erupted 2,281 times.

(Read: Nearly 5 Thousand Natural Disaster Incidents in Indonesia Throughout 2023, Forest and Land Fires Dominate)