Mount Ibu Erupts Again This Afternoon (Thursday, August 28, 2025)

Mount Ibu in North Maluku erupted again on Thursday (28/8/2025) at 05:01 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 around 500 meters above the peak (1,825 meters above sea level).

The ash column was observed to be white to gray with moderate to thick intensity towards the northeast. The eruption was recorded on a seismograph with a maximum amplitude of 28 millimeters and a duration of 49 seconds.

(Read: Earthquakes to Droughts, These are the Natural Disasters Frequently Occurring in Indonesia Until Mid-2023)

According to MAGMA Indonesia''s volcanic activity report, Mount Ibu''s activity level is at Level II (Alert). Seismic observations on August 28, 2025, from 00:00-23:59 WIT showed 111 eruption/explosion earthquakes with amplitudes of 16-28 millimeters and earthquake durations of 31-68 seconds.

Furthermore, there were 2 exhalation earthquakes with amplitudes of 6-8 millimeters and durations of 34-41 seconds, and 17 harmonic tremors with amplitudes of 2-28 millimeters and durations of 41-169 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 5,855 volcanic eruptions across Indonesia. Mount Semeru in East Java had the most eruptions (2,342 times), while Mount Ibu erupted 2,142 times.

(Read: 5.5 M Earthquake Shakes 262 Km East of Levuka,)