Warning! Mount Ibu Erupts Again This Afternoon (Monday, August 18, 2025)

Mount Ibu in North Maluku erupted again on Monday (August 18, 2025) at 12:59 WIT. In the last week, Mount Ibu only erupted once.

Based on eruption information from the Centre for Volcanology and Geological Hazard Mitigation (PVMBG) via the MAGMA Indonesia application, the height of the observed ash column was approximately 500 meters above the peak or 1,825 meters above sea level.

The ash column was observed to be gray with thick intensity towards the west. The eruption of Mount Ibu was still ongoing when this report was made.

(Read: Number of Earthquake Disaster Victims in Indonesia in 2020-2024)

According to the MAGMA Indonesia volcano activity report, Mount Ibu's activity level is at Level II (Alert). Seismicity observations on August 18, 2025, from 00:00-23:59 WIT showed 126 eruption/explosion earthquakes with amplitudes of 11-28 millimeters and durations of 33-74 seconds.

Furthermore, 4 emission tremors with amplitudes of 3-6 millimeters and durations of 31-46 seconds, and 28 harmonic tremors with amplitudes of 2-28 millimeters and durations of 24-194 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 5,674 volcanic eruptions across Indonesia. Mount Semeru in East Java has erupted the most (2,276 times), while Mount Ibu has erupted 2,084 times.

(Read: Last Five Earthquakes Recorded by BMKG (Saturday, July 19, 2025 13:53:43 WIB))