Alert! Mount Semeru Erupted Again This Morning (Monday, 10 August 2026)
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Mount Semeru in East Java erupted again on Monday (10/8/2026) at 05:42 WIB. Over the past week, Semeru has erupted only once.
Per Indonesian MAGMA app / PVMBG eruption reports: eruption visual was unobserved, activity was ongoing when this notice was published.
(Read: Indonesia Ranks 1st Globally For Most Active Volcanoes)
Semeru is set at Activity Level III (Alert). Monitoring between 18:00-23:59 WIB 10 Aug 2026 recorded 30 eruption quakes (11-22mm amplitude, 91-120s duration); 3 collapse quakes (2-4mm amplitude, 66-115s duration).
PVMBG ban: All activities are prohibited 13km from the peak along the southeast Besuk Kobokan sector. Outside this zone, avoid 500m from Besuk Kobokan riverbanks: pyroclastic surge & lahar hazards extend up to 17km from the summit.
As of 2026, Indonesia recorded 3,852 volcanic eruptions nationwide; Mount Semeru accounted for 1,578 of these events, the highest count.
"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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