Warning! Mount Ibu Erupts Again This Afternoon (Saturday, September 27, 2025)

Mount Ibu in North Maluku erupted again on Saturday (27/9/2025) at 15:53 WIT. In the last week, Mount Ibu has erupted 27 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 south. The eruption was recorded on a seismograph with a maximum amplitude of 28 millimeters and a duration of 60 seconds.

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

According to MAGMA Indonesia's volcanic activity report, Mount Ibu's activity level is at Level II (Alert). Seismicity observations on September 27, 2025, from 00:00-23:59 WIT showed 78 eruption earthquakes with amplitudes of 14-28 millimeters and durations of 31-95 seconds.

Subsequently, there were 2 exhalation earthquakes with amplitudes of 4-6 millimeters and durations of 32-34 seconds, and 21 harmonic earthquakes with amplitudes of 2-28 millimeters and durations of 30-131 seconds.

PVMBG urges the public around Mount Ibu and visitors/tourists not to engage in activities within a radius of 2 kilometers 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 6,390 volcanic eruptions across Indonesia. Mount Semeru in East Java had the most eruptions (2,510 times) while Mount Ibu erupted 2,305 times.

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