Alert! Mount Semeru Erupts Again This Morning (Monday, February 16, 2026)

Mount Semeru in East Java erupted again on Monday (February 16, 2026) at 05:23 WIB. In the past week, Mount Semeru has erupted twice.

Quoting 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 about None meters above the peak or None meters above sea level.

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

(Read: Floods Dominate Natural Disasters in Indonesia at the End of February 2024)

According to the MAGMA Indonesia volcanic activity report, the activity level of Mount Semeru is at Level III (Alert). Earthquake observations on February 16, 2026 from 18:00 to 23:59 WIB showed 23 eruption/explosion earthquakes with amplitudes of 12-22 millimeters and durations of 73-119 seconds.

Then, 1 harmonic earthquake with an amplitude of 8 millimeters and a duration of 188 seconds, as well as 2 distant tectonic earthquakes with amplitudes of 6-30 millimeters, s-p times of 15-62 seconds, and durations of 31-181 seconds.

PVMBG advises against any activities in the southeast sector along the Besuk Kobokan, within 13 kilometers of the peak (eruption center). Outside that distance, residents should not 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 lava flows up to 17 kilometers from the peak.

Throughout 2026, MAGMA Indonesia has recorded 621 volcanic eruptions across Indonesia. Mount Semeru in East Java has the most eruptions with 322 events.

(Read: There Are 1,300 Natural Disasters in Indonesia Until September 2024, Here Are the Details)