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Mount Semeru Erupts, Ash Clouds Threaten Aviation Safety

11/19/2025

46 6 Full Breakdown

Summary

Story summary

Mount Semeru volcano in Indonesia erupted at 4:00 p.m. local time, sending ash over 6,500 feet.
Center for Volcanology warned residents to stay 5 miles away due to hot ash clouds and lava flows.
Ejected pyroclastic rocks may reach 1.5 miles from the peak.
As of Wednesday evening, the eruption was ongoing.
Australia’s Bureau of Meteorology issued a Volcanic Ash Advisory for aviation in the region.

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Story summary

Mount Semeru volcano in Indonesia erupted at 4:00 p.m. local time, sending ash over 6,500 feet.
Center for Volcanology warned residents to stay 5 miles away due to hot ash clouds and lava flows.
Ejected pyroclastic rocks may reach 1.5 miles from the peak.
As of Wednesday evening, the eruption was ongoing.
Australia’s Bureau of Meteorology issued a Volcanic Ash Advisory for aviation in the region.