Newest Volcano Notice Including Iliamna

AVO/USGS Volcanic Activity Notice

Volcano: Iliamna (VNUM #313020)

Current Volcano Alert Level: NORMAL
Previous Volcano Alert Level: UNASSIGNED

Current Aviation Color Code: GREEN
Previous Aviation Color Code: UNASSIGNED


Issued: Tuesday, July 1, 2025, 11:41 AM AKDT
Source: Alaska Volcano Observatory
Notice Number: 2025/A406
Location: N 60 deg 1 min W 153 deg 5 min
Elevation: 10016 ft (3053 m)
Area: Cook Inlet-South Central

Volcanic Activity Summary:

Repairs to the seismic network were completed last week and there is now sufficient data available to monitor activity at Iliamna Volcano. The Aviation Color Code and Volcano Alert Level are being changed to GREEN/NORMAL from UNASSIGNED/UNASSIGNED. 

Recent Observations:
[Volcanic cloud height] NA
[Other volcanic cloud information] NA

Remarks:

Iliamna Volcano is located on the western side of lower Cook Inlet in the Lake Clark National Park. Iliamna is a snow-covered stratovolcano which rises 10,020 feet above sea level. Although steam plumes occur on its eastern flanks, there has been no historic volcanic activity at Iliamna. Iliamna is located 225 km (140 miles) southwest of Anchorage and 113 km (70 miles) southwest of Homer.

Contacts:

Matt Haney, Scientist-in-Charge, USGS mhaney@usgs.gov (907) 786-7497
Jessica Larsen, Acting Coordinating Scientist, UAF jflarsen@alaska.edu (907) 378-5460

Next Notice:

A new VAN/VONA will be issued if conditions change significantly or alert levels are modified.

Contact AVO: https://avo.alaska.edu/contact

The Alaska Volcano Observatory is a cooperative program of the U.S. Geological Survey, the University of Alaska Fairbanks Geophysical Institute, and the Alaska Division of Geological and Geophysical Surveys.