Mount Ibu Erupts Again Tonight (Tuesday, April 21, 2026)

Mount Ibu in North Maluku erupted again on Tuesday (April 21, 2026) at 19:13 WIT. In the past week, Mount Ibu has erupted 11 times.

Based on eruption information from the Center for Volcanology and Geological Hazard Mitigation (PVMBG) via the MAGMA Indonesia application, the observed ash column height is approximately 400 meters above the peak (1,725 meters above sea level).

The ash column was observed to be gray in color with thick intensity towards the southwest. The eruption was recorded on the seismograph with a maximum amplitude of 28 millimeters and a duration of 58 seconds.

(Read: Not Jakarta, This is the Area with the Worst Air Quality in Indonesia (Wednesday, June 7, 2023))

According to the MAGMA Indonesia volcano activity report, Mount Ibu's activity level is at Level II (Alert). Earthquake observations on April 21, 2026 from 00:00-23:59 WIT showed 126 eruption/explosion earthquakes with amplitudes of 13-28 millimeters and durations of 34-76 seconds.

Then, 4 emission earthquakes with amplitudes of 2-11 millimeters and durations of 37-47 seconds, as well as 11 harmonic earthquakes with amplitudes of 2-10 millimeters and durations of 51-117 seconds.

PVMBG advises residents around Mount Ibu and visitors/tourists not to carry out activities within a 2-kilometer radius and a sectoral extension of 3.5 kilometers towards the crater opening in the northern part of Mount Ibu's active crater.

During 2026, MAGMA Indonesia has recorded 1,594 volcanic eruptions across Indonesia. Mount Semeru in East Java has the most eruptions (843 times) while Mount Ibu has erupted 577 times.

(Read: Bangladesh Has the Worst Air Quality in the World, How About Indonesia?)