Mount Ibu Erupts Again Tonight (Friday, November 21, 2025)

Mount Ibu in North Maluku erupted again on Friday (11/21/2025) at 10:51 PM WIT. In the last week, Mount Ibu has erupted 23 times.

Based on 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 approximately None meters above the peak or None meters above sea level.

The visual eruption was not observed. The eruption was recorded on a seismograph with a maximum amplitude of 15 millimeters and a duration of 34 seconds.

(Read: Not Jakarta, These Are the Areas with the Worst Air Quality in Indonesia (Wednesday, June 7, 2023))

According to the MAGMA Indonesia volcano activity report, the activity level of Mount Ibu is at Level II (Alert). Seismicity observations on November 21, 2025, from 00:00-23:59 WIT showed 78 eruption tremors with an amplitude of 15-28 millimeters and a duration of 32-96 seconds.

Then, 3 exhalation tremors with an amplitude of 6-10 millimeters and a duration of 36-37 seconds, and 11 harmonic tremors with an amplitude of 2-4 millimeters and a duration of 42-146 seconds occurred.

PVMBG urges the public around Mount Ibu and visitors/tourists not to engage in activities within a radius of 2 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 7,009 volcano eruptions across Indonesia. Mount Semeru in East Java had the most eruptions (2,809 times), while Mount Ibu erupted 2,536 times.

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