Volcano Activity Notifications

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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 Reports prior to 2008 have been archived in a separate system.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.

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Latest HANS Notifications

Sent	Notice Type	Volcanoes	Notice ID/Link
April 17, 2026, 10:24 am	Weekly Update	Great Sitkin,Shishaldin	DOI-USGS-AVO-2026-04-17T15:52:29+00:00
April 16, 2026, 9:31 am	Daily Update	Great Sitkin,Shishaldin	DOI-USGS-AVO-2026-04-16T17:27:24+00:00
April 15, 2026, 10:18 am	Daily Update	Great Sitkin,Shishaldin	DOI-USGS-AVO-2026-04-15T18:12:37+00:00
April 14, 2026, 10:13 am	Daily Update	Great Sitkin,Shishaldin	DOI-USGS-AVO-2026-04-14T18:00:58+00:00
April 13, 2026, 3:47 pm	VAN	Atka volcanic complex	DOI-USGS-AVO-2026-04-13T20:27:02+00:00
April 13, 2026, 3:47 pm	VAN/VONA	Atka volcanic complex	DOI-USGS-AVO-2026-04-13T20:27:02+00:00
April 13, 2026, 11:20 am	Daily Update	Great Sitkin,Shishaldin,Atka volcanic complex	DOI-USGS-AVO-2026-04-13T19:09:52+00:00
April 12, 2026, 10:19 am	Daily Update	Great Sitkin,Shishaldin,Atka volcanic complex	DOI-USGS-AVO-2026-04-12T18:01:52+00:00
April 11, 2026, 10:29 am	Daily Update	Great Sitkin,Shishaldin,Atka volcanic complex	DOI-USGS-AVO-2026-04-11T18:28:03+00:00

Alaska Volcano Observatory

Volcano Activity Notifications

Latest HANS Notifications