Warning! Mount Semeru Erupts Again Tonight (Monday, February 16, 2026)

Mount Semeru in East Java erupted again on Monday (February 16, 2026) at 19:48 WIB. In the past week, Mount Semeru has erupted 10 times.

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

No eruption visuals were observed. The eruption of Mount Semeru is still ongoing when this report was made.

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

According to the MAGMA Indonesia volcano activity report, the activity level of Mount Semeru is at Level III (Alert). Seismic observations on February 16, 2026 from 12:00 to 18:00 WIB showed 22 eruption/explosion earthquakes with an amplitude of 11-22 millimeters and a duration of 69-133 seconds.

Then, 1 avalanche earthquake with an amplitude of 2 mm and a duration of 48 seconds, as well as 5 emission earthquakes with an amplitude of 4-8 millimeters and a duration of 54-69 seconds.

PVMBG advises against any activity in the southeast sector along the Besuk Kobokan, within 13 kilometers of the peak (eruption center). Beyond that distance, residents are advised not to carry out activities within 500 meters of the riverbank along the Besuk Kobokan due to the potential for being affected by the expansion of hot clouds and lahar flows up to 17 kilometers from the peak.

Throughout 2026, MAGMA Indonesia has recorded 634 volcanic eruptions across Indonesia. Mount Semeru in East Java has the most eruptions with 330 events.

(Read: Diseases Experienced by Sumatra Flood Victims as of December 5, 2025)