Mount Ibu Erupts Again Tonight (Wednesday, November 5, 2025)

Mount Ibu in North Maluku erupted again on Wednesday (5/11/2025) at 23:26 WIT. In the last week, Mount Ibu only erupted once.

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 observed was approximately 600 meters above the peak or 1,925 meters above sea level.

The ash column was observed to be gray with moderate intensity heading northeast. The eruption was recorded on a seismograph with a maximum amplitude of 0.7 millimeters and a duration of 36 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). Seismicity observations on November 5, 2025, from 00:00-23:59 WIT showed 16 eruption tremors/earthquakes with amplitudes of 0.3-16 millimeters and a tremor duration of 35-52 seconds.

Furthermore, there were 6 harmonic tremors with amplitudes of 0.4-3 millimeters and a tremor duration of 32-196 seconds, as well as 23 low-frequency earthquakes with amplitudes of 0.2-3 millimeters and a tremor duration of 28-42 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 6,904 volcanic eruptions across Indonesia. Mount Semeru in East Java had the most eruptions (2,769 times), while Mount Ibu erupted 2,473 times.

(Read: Indonesia Has the Most Active Volcanoes in the World)