Warning! Mount Ibu Erupts Again Tonight (Saturday, August 9, 2025)

Mount Ibu in North Maluku erupted again on Saturday (August 9, 2025) at 11:01 PM WIT. In the last week, Mount Ibu has erupted 31 times.

According to eruption information from the Center for Volcanology and Geological Hazard Mitigation (PVMBG) via the MAGMA Indonesia application, the observed ash column height reached 600 meters above the peak or 1,925 meters above sea level.

The observed ash column was grey with thick intensity towards the west. The eruption was recorded on a seismograph with a maximum amplitude of 28 millimeters and a duration of 55 seconds.

(Read: Volcanic Eruption Trends in Recent Years)

According to MAGMA Indonesia's volcanic activity report, Mount Ibu's activity level is at Level II (Alert). Seismic observations on August 9, 2025, from 00:00-23:59 WIT showed 106 eruption/explosion earthquakes with amplitudes of 11-28 millimeters and earthquake durations of 36-79 seconds.

Subsequently, there were 6 exhalation earthquakes with amplitudes of 3-16 millimeters and durations of 37-47 seconds, and 27 harmonic earthquakes with amplitudes of 2-28 millimeters and durations of 42-193 seconds.

PVMBG advises 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 5,535 volcanic eruptions across Indonesia. Mount Semeru in East Java had the most eruptions (2,210 times) while Mount Ibu erupted 2,047 times.

(Read: Countries with the Most Active Volcanoes in the World, Indonesia Ranks First)