Mount Semeru Erupts Again This Morning, Ash Height Reaches Around 700 Meters

Mount Semeru in East Java erupted again on Sunday (February 22, 2026) at 06:01 WIB. In the past week, Mount Semeru has erupted 59 times.

Quoting eruption information from the Center for Volcanology and Geological Hazard Mitigation (PVMBG) via the MAGMA Indonesia application, the observed ash column height is around 700 meters above the peak or 4,376 meters above sea level.

The ash column was observed to be gray in color with thick intensity towards the northeast. The eruption was recorded on the seismograph with a maximum amplitude of 22 millimeters and a duration of 135 seconds.

(Read: Warning, Jakarta's Air Quality This Morning is the Worst in the World (Thursday, June 15, 2023))

According to the MAGMA Indonesia volcano activity report, Mount Semeru's activity level is at Level III (Alert). Earthquake observations on February 22, 2026 from 18:00 to 23:59 WIB showed 11 eruption/explosion earthquakes with amplitudes of 12-22 millimeters and durations of 111-207 seconds.

Then, 4 avalanche earthquakes with amplitudes of 2-6 mm and durations of 86-159 seconds, as well as 4 emission earthquakes with amplitudes of 4-8 millimeters and durations of 55-97 seconds.

PVMBG advises against any activities in the southeast sector along the Besuk Kobokan, within 13 kilometers of the peak (eruption center). Outside this 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 expanding hot clouds and lava flows up to 17 kilometers from the peak.

Throughout 2026, MAGMA Indonesia has recorded 717 volcanic eruptions across Indonesia. Mount Semeru in East Java has the most eruptions with 379 events.

(Read: Not Jakarta, This is the Area with the Worst Air Quality in Indonesia (Wednesday, June 7, 2023))