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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 Reports prior to 2008 have been archived in a separate system.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
September 1, 2026, 10:52 am Daily Update Great Sitkin,Kupreanof,Shishaldin DOI-USGS-AVO-2026-09-01T18:50:30+00:00
August 31, 2026, 4:04 pm VAN Katmai DOI-USGS-AVO-2026-08-31T23:56:18+00:00
August 31, 2026, 4:04 pm VAN/VONA Katmai DOI-USGS-AVO-2026-08-31T23:56:18+00:00
August 31, 2026, 10:58 am Daily Update Great Sitkin,Kupreanof,Shishaldin DOI-USGS-AVO-2026-08-31T18:53:21+00:00
August 30, 2026, 1:06 pm Daily Update Great Sitkin,Kupreanof,Shishaldin DOI-USGS-AVO-2026-08-30T21:02:04+00:00
August 29, 2026, 6:52 pm VAN Katmai DOI-USGS-AVO-2026-03-06T00:09:32+00:00
August 29, 2026, 6:52 pm VAN/VONA Katmai DOI-USGS-AVO-2026-03-06T00:09:32+00:00
August 29, 2026, 12:02 pm Daily Update Great Sitkin,Kupreanof,Shishaldin DOI-USGS-AVO-2026-08-29T19:55:36+00:00
August 28, 2026, 10:37 am Weekly Update Great Sitkin,Kupreanof,Shishaldin DOI-USGS-AVO-2026-08-28T16:59:04+00:00
August 27, 2026, 11:11 am Daily Update Great Sitkin,Kupreanof,Shishaldin DOI-USGS-AVO-2026-08-27T19:04:26+00:00
August 26, 2026, 11:44 am Daily Update Great Sitkin,Kupreanof,Shishaldin DOI-USGS-AVO-2026-08-26T19:34:13+00:00
August 25, 2026, 11:49 am Daily Update Great Sitkin,Kupreanof,Shishaldin DOI-USGS-AVO-2026-08-25T19:44:25+00:00
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