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 Reports prior to 2008 have been archived in a separate system.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 20, 2024, 10:22 am Daily Update Great Sitkin,Shishaldin DOI-USGS-AVO-2024-04-20T18:18:49+00:00
April 19, 2024, 11:24 am Weekly Update Great Sitkin,Shishaldin DOI-USGS-AVO-2024-04-19T16:55:30+00:00
April 18, 2024, 11:09 am Daily Update Great Sitkin,Shishaldin DOI-USGS-AVO-2024-04-18T18:14:03+00:00
April 17, 2024, 11:23 am Daily Update Great Sitkin,Shishaldin DOI-USGS-AVO-2024-04-17T19:20:54+00:00
April 16, 2024, 11:01 am Daily Update Great Sitkin,Shishaldin DOI-USGS-AVO-2024-04-16T18:17:08+00:00
April 15, 2024, 12:51 pm Daily Update Great Sitkin,Shishaldin DOI-USGS-AVO-2024-04-15T19:59:34+00:00
April 14, 2024, 10:08 am Daily Update Great Sitkin,Shishaldin DOI-USGS-AVO-2024-04-14T18:04:47+00:00