Mount Ibu Erupts Again Tonight (Monday, October 20, 2025)

Mount Ibu in North Maluku erupted again on Monday (10/20/2025) at 20:22 WIT. In the last week, Mount Ibu has erupted 5 times.

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 None meters above the peak or None meters above sea level.

No visual eruption was observed. The eruption was recorded on a seismograph with a maximum amplitude of 20 millimeters and a duration of 41 seconds.

(Read: Jatibening Enters the List of 15 Areas with the Best Air Quality in Indonesia as of September 2023)

According to MAGMA Indonesia's volcano activity report, Mount Ibu's activity level is at Level II (Alert). Seismic observations on October 20, 2025, from 00:00-23:59 WIT showed 66 eruption/explosive earthquakes with amplitudes of 10-28 millimeters and earthquake durations of 26-82 seconds.

Subsequently, 2 times of exhalation earthquakes with amplitudes of 3-10 millimeters and earthquake durations of 32-50 seconds, and 12 times of harmonic tremors with amplitudes of 2-15 millimeters and earthquake durations of 28-162 seconds occurred.

PVMBG urges the public around Mount Ibu and visitors/tourists not to engage in activities within a radius of 2.0 kilometers 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 6,723 volcanic eruptions/explosions across Indonesia. Mount Semeru in East Java had the most eruptions (2,646 times) while Mount Ibu erupted 2,418 times.

(Read: West Kalimantan Has the Worst Air Quality in Indonesia This Morning (Friday, August 18, 2023))