Home
Volcanoes
Webcams
News
Explore Data
Images
Get Involved
About AVO

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 Reports prior to 2008 have been archived in a separate system.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
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
April 10, 2026, 11:37 am Weekly Update Great Sitkin,Shishaldin,Atka volcanic complex DOI-USGS-AVO-2026-04-10T18:35:02+00:00
April 9, 2026, 11:24 am Daily Update Great Sitkin,Shishaldin,Atka volcanic complex DOI-USGS-AVO-2026-04-09T19:21:22+00:00
April 8, 2026, 11:39 am Daily Update Great Sitkin,Shishaldin,Atka volcanic complex DOI-USGS-AVO-2026-04-08T19:32:28+00:00
April 7, 2026, 12:58 pm Daily Update Great Sitkin,Shishaldin,Atka volcanic complex DOI-USGS-AVO-2026-04-07T18:33:23+00:00
April 6, 2026, 12:05 pm Daily Update Great Sitkin,Shishaldin,Atka volcanic complex DOI-USGS-AVO-2026-04-06T19:54:57+00:00
× Instrument data