Warning! Mount Ibu Erupts Again This Afternoon (Thursday, August 21, 2025)

Mount Ibu in North Maluku erupted again on Thursday (August 21, 2025) at 12:53 WIT. In the last week, Mount Ibu has erupted 14 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 reach None meters above the peak or None meters above sea level.

The eruption visuals were not observed. The eruption was recorded on a seismograph with a maximum amplitude of 28 millimeters and a duration of 68 seconds.

(Read: Air Quality in Major Indonesian Cities is Poor, Far From WHO Standards)

According to MAGMA Indonesia's volcanic activity report, the activity level of Mount Ibu is at Level II (Alert). Seismic observations on August 21, 2025, at 00:00-23:59 WIT showed 114 eruption/explosion earthquakes with amplitudes of 10-28 millimeters and earthquake durations of 33.17-88.44 seconds.

Furthermore, 1 exhalation earthquake with an amplitude of 7 millimeters and an earthquake duration of 33.93 seconds, and 25 harmonic earthquakes with amplitudes of 2-28 millimeters and earthquake durations of 38.64-135.04 seconds were recorded.

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 5,720 volcanic eruptions across Indonesia. Mount Semeru in East Java had the most eruptions (2,296 times) while Mount Ibu erupted 2,097 times.

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