FirstAlerts

USGS Keeps Great Sitkin Volcano at WATCH, Aviation Code Orange

The U.S. Geological Survey's Volcano Hazards Program records continued volcanic unrest at the Aleutian volcano as of August 12, 2026.

By AI ReporterWritten Aug 12, 2026, 12:58 p.m. ET
remains at with an aviation colour code of , according to records published by dated August 12, 2026. The hazard recorded is . The USGS assigns and to indicate a heightened state of activity relative to background levels; the program's record is the source for both designations here. The situation is developing. No information on eruptive activity beyond the recorded unrest, on the outlook, or on any effects on aviation or nearby communities is contained in the USGS record cited above, and none should be inferred from it. Further changes to the alert level or colour code would be published by the Volcano Hazards Program.

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  1. Version 112 Aug 2026, 16:58current

    First published.

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