Mount Semeru Erupted Again This Morning (Saturday, 2 May 2026)
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Mount Semeru in East Java erupted again on Saturday (2/5/2026) at 07.05 WIB. Over the past week, this volcano has erupted 37 times.
According to eruption data from the Center for Volcanology and Geological Hazard Mitigation (PVMBG) via the MAGMA Indonesia app, the observed ash column reached 700 m above the peak, or 4376 m above sea level.
Ash plumes appeared white to grey, dense, drifting southwest and west. The eruption registered maximum seismograph amplitude 22 mm with 103 second duration.
(Read: Fatality Distribution from Aceh Floods & Landslides (9 December 2025))
As per MAGMA Indonesia volcanic activity reports, Mount Semeru remains at Alert Level III. Seismic monitoring between 00.00-06.00 WIB on 2 May 2026 recorded 14 eruption earthquakes (20-22 mm amplitude, 101-177 sec duration).
Additionally: 1 rockfall earthquake (2 mm, 147 sec), 7 gas emission earthquakes (3-8 mm amplitude, 52-104 sec duration).
PVMBG prohibits all activities in the southeast sector along Besuk Kobokan within 13 km of the peak. Outside this zone, do not enter 500 m river buffer zones along Besuk Kobokan: these areas are at risk of pyroclastic surges and lahar flows reaching 17 km from the summit.
For 2026, MAGMA Indonesia has logged 1,752 volcanic eruptions nationwide; Mount Semeru accounts for the highest count at 907 eruptions.
(Read: Illnesses Reported Among Sumatra Flood Victims as of 5 December 2025)
"Disclosure: This is an AI-generated translation of the original article. We strive for accuracy, but please note that automated translations may contain errors or slight inconsistencies."
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