Mount Ibu Erupts Again Tonight (Monday, September 15, 2025)

Mount Ibu in North Maluku erupted again on Monday (September 15, 2025) at 6:54 PM WIT. In the last week, Mount Ibu has erupted 6 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 600 meters above the peak (1,925 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 67 seconds.

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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 September 15, 2025, from 00:00-23:59 WIT showed 120 eruption earthquakes with amplitudes of 14-28 millimeters and earthquake durations of 33-67 seconds.

Furthermore, there were 3 emission earthquakes with amplitudes of 3-8 millimeters and durations of 38-59 seconds, and 22 harmonic earthquakes with amplitudes of 2-15 millimeters and durations of 24-298 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 6,112 volcanic eruptions across Indonesia. Mount Semeru in East Java had the most eruptions (2,451 times) while Mount Ibu erupted 2,246 times.

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