Warning! Mount Ibu Erupts Again Tonight (Tuesday, September 30, 2025)

Mount Ibu in North Maluku erupted again on Tuesday (9/30/2025) at 18:07 WIT. In the last week, Mount Ibu has erupted 14 times.

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

The ash column was observed to be gray with thick intensity towards the northwest. The eruption was recorded on a seismograph with a maximum amplitude of 28 millimeters and a duration of 71 seconds.

(Read: Hit by Floods and Landslides, Here's the Population of Cianjur 2024)

According to MAGMA Indonesia's volcano activity report, Mount Ibu's activity level is at Level II (Alert). Seismic observations on September 30, 2025, from 00:00-23:59 WIT showed 117 eruption/explosive earthquakes with amplitudes of 17-28 millimeters and earthquake durations of 27-78 seconds.

Subsequently, there were 3 rockfall earthquakes with an amplitude of 2 mm and durations of 37-39 seconds, and 5 exhalation earthquakes with amplitudes of 3-10 millimeters and durations of 31-53 seconds.

PVMBG urged the public around Mount Ibu and visitors/tourists not to carry out 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 6,473 volcano eruptions across Indonesia. Mount Semeru in East Java had the most eruptions (2,537 times) while Mount Ibu erupted 2,329 times.

(Read: Indonesia's Flood Disaster Trend Over the Decade, Starting to Decline Since 2021)