Warning! Mount Semeru Erupts Again This Morning (Sunday, February 22, 2026)

Mount Semeru in East Java erupted again on Sunday (February 22, 2026) at 07:35 WIB. In the past week alone, Mount Semeru has erupted 62 times.

Citing eruption information from the Center for Volcanology and Geological Hazard Mitigation (PVMBG) via the MAGMA Indonesia application, the observed ash column height reached 900 meters above the peak (4,576 meters above sea level).

The ash column appeared white to gray with thick intensity, drifting north and northeast. The eruption was recorded on seismographs with a maximum amplitude of 22 millimeters and a duration of 119 seconds.

(Read: Nearly 300 Natural Disasters Occurred in Indonesia by Mid-February 2024)

According to the MAGMA Indonesia volcanic activity report, Mount Semeru is at Level III (Standby) activity status. Earthquake observations on February 22, 2026, from 00:00 to 06:00 WIB recorded 20 eruption/explosion earthquakes with amplitudes of 15-22 millimeters and durations of 83-169 seconds.

Additionally, there was 1 collapse earthquake with an amplitude of 3 mm and duration of 129 seconds, as well as 2 emission earthquakes with amplitudes of 5-7 millimeters and durations of 55-79 seconds.

PVMBG advises against any activities in the southeast sector along the Besuk Kobokan, within 13 kilometers of the peak (eruption center). Beyond this distance, residents are warned not to conduct activities within 500 meters of the riverbanks along the Besuk Kobokan, as there is a risk of being affected by expanding pyroclastic flows and lahar floods up to 17 kilometers from the peak.

Throughout 2026, MAGMA Indonesia has recorded 721 volcanic eruptions across Indonesia. Mount Semeru in East Java has the highest number of eruptions, with 382 events.

(Read: Number of Slightly Damaged Houses Due to Natural Disasters in Indonesia (2015-2024))