Semeru eruption sends pyroclastic flow 3.5 km (2.2 miles) down Besuk Kobokan, Indonesia
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March 29, 2026
An explosive eruption occurred at Semeru volcano in East Java, Indonesia, at 08:49 LT (01:49 UTC) on March 29, 2026, producing an ash plume rising 800 m (2 625 feet) above the summit and a pyroclastic density current traveling 3.5 km (2.2 miles) toward the Besuk Kobokan drainage.
Source
Discussion in the ATmosphere