Mount Ibu Erupts Early Monday, Status Alert

Mount Ibu in North Maluku erupted again on Monday (August 11, 2025) at 01:12 WIT. In the last week, Mount Ibu has erupted twice.

Citing 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 or 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 58 seconds.

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According to the MAGMA Indonesia volcano activity report, Mount Ibu's activity level is at Level II (Alert). Seismic observations on August 11, 2025, from 00:00-23:59 WIT showed 105 eruption/explosion earthquakes with amplitudes of 17-28 millimeters and earthquake durations of 35-78 seconds.

Additionally, 4 times of emission earthquakes with amplitudes of 3-16 millimeters and earthquake durations of 38-62 seconds, and 21 harmonic earthquakes with amplitudes of 2-28 millimeters and earthquake durations of 31-229 seconds occurred.

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 5,555 volcanic eruptions across Indonesia. Mount Semeru in East Java had the most eruptions (2,218 times), while Mount Ibu erupted 2,055 times.

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