Mount Ibu Erupts Again This Afternoon, Ash Column Reaches 300 Meters Above Peak

Mount Ibu in North Maluku erupted again on Monday (August 25, 2025) at 4:00 PM WIT. In the past week, Mount Ibu has erupted 5 times.

Based on eruption information from the Center for Volcanology and Geological Hazard Mitigation (PVMBG) via the MAGMA Indonesia application, the height of the observed ash column was approximately 300 meters above the peak, or 1,625 meters above sea level.

The ash column was observed to be gray in color with thick intensity, moving towards the east. The eruption was recorded on a seismograph with a maximum amplitude of 28 millimeters and a duration of 67 seconds.

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According to MAGMA Indonesia''s volcano activity report, Mount Ibu''s activity level is at Level II (Alert). Seismic observations on August 25, 2025, from 00:00-23:59 WIT, showed 131 eruptive earthquakes/tremors with amplitudes of 11-28 millimeters and durations of 38.36-66.79 seconds.

Furthermore, there was 1 emission tremor with an amplitude of 3 millimeters and a duration of 31.68 seconds, and 20 harmonic tremors with amplitudes of 2-28 millimeters and durations of 34.17-170.36 seconds.

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 5,790 volcanic eruptions across Indonesia. Mount Semeru in East Java erupted the most (2,312 times), while Mount Ibu erupted 2,124 times.

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