Mount Semeru Erupts Again This Morning (Tuesday, April 14, 2026)

Mount Semeru in East Java erupted again on Tuesday (April 14, 2026) at 09:09 WIB. In the past week, Mount Semeru has erupted 12 times.

Quoting eruption information from the Center for Volcanology and Geological Hazard Mitigation (PVMBG) via the MAGMA Indonesia application, the height of the ash column was observed at around None meters above the peak (None meters above sea level).

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

(Read: 4.1 M Earthquake Shakes 2 Km East of Cartago, Costa Rica)

According to the MAGMA Indonesia volcano activity report, the activity level of Mount Semeru is at Level III (Alert). Seismic observations on April 14, 2026 from 00:00-06:00 WIB showed 17 eruption/explosion earthquakes with amplitudes of 14-23 millimeters and durations of 87-169 seconds.

Then, 1 hot cloud avalanche earthquake with an amplitude of 20 mm and duration of 203 seconds, as well as 11 avalanche earthquakes with amplitudes of 1-2 mm and durations of 50-85 seconds.

PVMBG advises against any activities in the southeast sector along the Besuk Kobokan, up to 13 kilometers from 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 hot cloud expansion and lahar flow up to 17 kilometers from the peak.

Throughout 2026, MAGMA Indonesia has recorded 1,460 volcanic eruptions across Indonesia. Mount Semeru in East Java has the most eruptions with 787 events.

(Read: 10 Countries with the Most Earthquakes in 2023, Indonesia Ranks First)