Apoon Pass Fire

202289,306 acresAlaska

The Apoon Pass Fire burned 89,306 acres, about 140 square miles, across Kusilvak Census Area. It began on June 10, 2022.

Watch how it happened

Apoon Pass Fire · 2022

How it happened

Watch it burn in the order satellites saw it, coloured by how severely each place burned.

About this replay
Date (UTC)—Historical replay
Burned so far—acres
High severity—of the area so far
Detections1,125satellite fire pixels

How severely it burned

Burn severity inside the final perimeter, classified from Landsat images taken before and after the fire.

Map of burn severity across the Apoon Pass Fire
Burn severity by class
SeverityShareAcres
Moderatemixed: many trees killed, some survive1.2%1,031
Lowsurface fire, most trees survive80%71,603
Unburned to lowislands inside the perimeter, little change14%12,694
Increased greennessvegetation greener after the fire than before2.3%2,051
Not mappedcloud, shadow or water in the satellite images2.2%1,926

No part of the fire was classed as high severity; 1% burned at moderate severity.

Monitoring Trends in Burn Severity (U.S. Geological Survey and USDA Forest Service). Classes come from the change in a Landsat burn index (dNBR) between images before and after the fire; acres are each class’s share of the fire’s mapped area.

Where it burned

Acres inside each county, measured from the satellite-mapped perimeter.

Acres burned by county
Kusilvak Census AreaAK89,369

Other large fires in Alaska in 2022

Monitoring Trends in Burn Severity (USGS and U.S. Forest Service). Type recorded: Wildfire.