Mount Semeru Erupts Again This Afternoon (Tuesday, March 10, 2026)

Mount Semeru in East Java erupted again on Tuesday (March 10, 2026) at 4:49 PM WIB. In the past week, Mount Semeru has erupted 22 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 reached None meters above the peak or None meters above sea level.

No eruption visuals were observed. The eruption was recorded on the seismograph with a maximum amplitude of 23 millimeters and a duration of 136 seconds.

(Read: Number of Damaged Houses Due to Floods and Landslides in Sumatra (December 17, 2025))

According to the MAGMA Indonesia volcanic activity report, Mount Semeru's activity level is at Level III (Alert). Earthquake observations on March 10, 2026, from 6:00 AM to 12:00 PM WIB showed 20 eruption/explosion earthquakes with amplitudes of 10-23 millimeters and durations of 65-133 seconds.

Additionally, there were 2 emission earthquakes with amplitudes of 4-7 millimeters and durations of 42-51 seconds, as well as 5 harmonic earthquakes with amplitudes of 2-4 millimeters and durations of 131-679 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 should avoid activities within 500 meters of the riverbank along the Besuk Kobokan due to the potential for being affected by expanding pyroclastic flows and lahar flows up to 17 kilometers from the peak.

Throughout 2026, MAGMA Indonesia has recorded 937 volcanic eruptions across Indonesia. Mount Semeru in East Java has the highest number of eruptions with 485 events.

(Read: 295 People Killed by Floods and Landslides in North Sumatra, Here's the Distribution (December 4, 2025))