Mount Ibu Erupts Again Early This Morning (Wednesday, September 17, 2025)

Mount Ibu in North Maluku erupted again on Wednesday (9/17/2025) at 02:26 WIT. In the last week, Mount Ibu has erupted 11 times.

Based on eruption information from the Center for Volcanology and Geological Hazard Mitigation (PVMBG) via the MAGMA Indonesia application, the observed ash column reached 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 73 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 September 17, 2025, from 00:00-23:59 WIT showed 80 eruption/explosion earthquakes with amplitudes of 30-63 millimeters and durations of 14-28 seconds.

Subsequently, 15 harmonic earthquakes with amplitudes of 2-21 millimeters and durations of 28-204 seconds, and 78 low-frequency earthquakes with amplitudes of 2-10 millimeters and durations of 16-29 seconds were recorded.

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 6,125 volcanic eruptions across Indonesia. Mount Semeru in East Java had the most eruptions (2,454 times), while Mount Ibu erupted 2,251 times.

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