Warning! Mount Semeru Erupts Again Tonight (Tuesday, February 10, 2026)

Mount Semeru in East Java erupted again on Tuesday (February 10, 2026) at 8:13 PM WIB. In the past week, Mount Semeru has erupted 19 times.

Based on eruption information from the Center for Volcanology and Geological Hazard Mitigation (PVMBG) via the MAGMA Indonesia application, the height of the observed ash column is approximately None meters above the peak (None meters above sea level).

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

(Read: Update on North Sumatra Floods and Landslides: 116 People Killed, Here's the Breakdown)

According to the MAGMA Indonesia volcano activity report, the activity level of Mount Semeru is at Level III (Alert). Seismic observations on February 10, 2026 from 12:00 PM to 6:00 PM WIB showed 25 eruption/explosion earthquakes with amplitudes of 15-22 millimeters and durations of 84-173 seconds.

Additionally, there were 2 emission earthquakes with amplitudes of 2-4 millimeters and durations of 42-48 seconds, as well as 1 distant tectonic earthquake with an amplitude of 6 millimeters, s-p time of 31 seconds, and duration of 115 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 advised not to carry out activities within 500 meters of the riverbanks along the Besuk Kobokan due to the potential for being affected by expanding hot clouds and lahar flows up to 17 kilometers from the peak.

During 2026, MAGMA Indonesia has recorded 557 volcanic eruptions across Indonesia. Mount Semeru in East Java has the most eruptions with 286 events.

(Read: Update on Damaged Facilities Due to Sumatra Floods and Landslides (December 11, 2025))