Mount Semeru Erupts Again This Morning (Saturday, January 24, 2026)

Mount Semeru in East Java erupted again on Saturday (January 24, 2026) at 07:56 AM Western Indonesian Time. In the last week, Mount Semeru has erupted 28 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 None meters above the peak or None meters above sea level.

The eruption visuals were not observed. Mount Semeru's eruption was still ongoing when this report was made.

(Read: West Sumatra Floods and Landslides Claim 200 Lives, Here's the Distribution (December 4, 2025))

According to MAGMA Indonesia's volcano activity report, Mount Semeru's activity level is at Level III (Siaga/Alert). Seismicity observations on January 24, 2026, from 00:00-06:00 AM Western Indonesian Time, showed 27 eruption earthquakes with amplitudes of 15-22 millimeters and earthquake durations of 101-230 seconds.

Then, 1 avalanche earthquake with an amplitude of 4 mm and an earthquake duration of 55 seconds, and 7 exhalation earthquakes with amplitudes of 1-4 millimeters and earthquake durations of 36-103 seconds occurred.

PVMBG advises against any activity in the southeast sector along Besuk Kobokan, 13 kilometers from the peak (eruption center). Beyond this distance, the public is advised not to engage in activities within 500 meters from the river bank (river border) along Besuk Kobokan, as there is a potential for expansion of hot clouds and lava flows up to 17 kilometers from the peak.

Throughout 2026, MAGMA Indonesia has recorded 322 volcanic eruptions across Indonesia. Mount Semeru in East Java has erupted the most, with 174 eruptions.

(Read: North Sumatra Flood-Landslide Update: 116 People Died, Here's the Details)