Mount Ibu Erupts Again This Morning (Monday, September 15, 2025)

Mount Ibu in North Maluku erupted again on Monday (September 15, 2025) at 07:03 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 500 meters above the peak (1,825 meters above sea level).

The ash column was observed to be gray with thick intensity towards the northwest. The eruption was recorded on a seismograph with a maximum amplitude of 28 millimeters and a duration of 69 seconds.

(Read: 10 Most Vulnerable Peat Hydrology Areas to Forest Fires in 2023)

According to the MAGMA Indonesia volcano activity report, the activity level of Mount Ibu is at Level II (Alert). Seismic observations on September 15, 2025, from 00:00-23:59 WIT showed 120 eruption/explosive earthquakes with amplitudes of 14-28 millimeters and durations of 33-67 seconds.

In addition, there were 3 exhalation earthquakes with amplitudes of 3-8 millimeters and durations of 38-59 seconds, and 22 harmonic earthquakes with amplitudes of 2-15 millimeters and durations of 24-298 seconds.

PVMBG urges communities 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 6,106 volcanic eruptions across Indonesia. Mount Semeru in East Java has erupted the most (2,450 times), while Mount Ibu has erupted 2,243 times.

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