Warning! Mount Ibu Erupts Again Tonight (Monday, August 18, 2025)

Mount Ibu in North Maluku erupted again on Monday (8/18/2025) at 11:13 PM WIT. In the last week, Mount Ibu has erupted twice.

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 400 meters above the peak (1,725 meters above sea level).

The ash column was observed to be gray with thick intensity towards the west. The eruption of Mount Ibu was still ongoing when this report was made.

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According to MAGMA Indonesia's volcanic activity report, Mount Ibu's activity level is at Level II (Alert). Seismic observations on August 18, 2025, from 00:00-23:59 WIT showed 118 eruption/explosion earthquakes with amplitudes of 9-28 millimeters and durations of 45.53-52.76 seconds.

Additionally, there were 2 exhalation earthquakes with amplitudes of 8-10 millimeters and durations of 34.21-36.77 seconds, and 22 harmonic tremors with amplitudes of 2-28 millimeters and durations of 24.36-138.33 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 5,682 volcanic eruptions/explosions across Indonesia. Mount Semeru in East Java had the most eruptions (2,277 times) while Mount Ibu erupted 2,085 times.

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