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Volcano Activity Notifications

About Color Codes & Alert Levels

In 2008, AVO switched to a new program to release reports. Reports prior to 2008 have been archived in a separate system. Due to the way these reports have been stored, archived reports cannot by searched by color code, alert level, and report type. If you would like to include archived reports in your search, check the box below.

Latest HANS Notifications

Sent Notice Type Volcanoes Notice ID/Link
November 21, 2024, 11:37 am Daily Update Great Sitkin,Spurr DOI-USGS-AVO-2024-11-21T20:33:02+00:00
November 20, 2024, 11:56 am Daily Update Great Sitkin,Spurr DOI-USGS-AVO-2024-11-20T20:51:13+00:00
November 19, 2024, 12:28 pm Daily Update Great Sitkin,Spurr DOI-USGS-AVO-2024-11-19T21:26:43+00:00
November 18, 2024, 12:22 pm Daily Update Great Sitkin,Spurr DOI-USGS-AVO-2024-11-18T20:56:25+00:00
November 17, 2024, 11:09 pm Information Statement Katmai DOI-USGS-AVO-2024-11-18T08:06:40+00:00
November 17, 2024, 10:47 am Daily Update Great Sitkin,Spurr DOI-USGS-AVO-2024-11-17T19:45:06+00:00
November 16, 2024, 10:40 am Daily Update Great Sitkin,Spurr DOI-USGS-AVO-2024-11-16T19:33:15+00:00
November 15, 2024, 10:38 am Weekly Update Great Sitkin,Spurr DOI-USGS-AVO-2024-11-15T18:55:01+00:00