Mount Ibu Erupts Again Tonight (Sunday, September 7, 2025)

Mount Ibu in North Maluku erupted again on Sunday (September 7, 2025) at 21:59 WIT. In the last week, Mount Ibu has erupted 38 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 400 meters above the peak (1,725 meters above sea level).

The ash column was observed to be gray with thick intensity towards the west. The eruption was recorded on a seismograph with a maximum amplitude of 28 millimeters and a duration of 61 seconds.

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

According to MAGMA Indonesia''s volcanic activity report, Mount Ibu''s activity level is at Level II (Alert). Seismic observations on September 7, 2025, from 00:00-23:59 WIT showed 47 eruption/explosion earthquakes with amplitudes of 4-28 millimeters and earthquake durations of 32-52 seconds.

Subsequently, 9 harmonic tremors with amplitudes of 2-11 millimeters and earthquake durations of 30-495 seconds, and 53 low-frequency earthquakes with amplitudes of 2-12 millimeters and earthquake durations of 17-29 seconds occurred.

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 6,000 volcanic eruptions across Indonesia. Mount Semeru in East Java had the most eruptions (2,402 times), while Mount Ibu erupted 2,202 times.

(Read: Trends in Volcanic Eruptions in Recent Years)