Our Creek Fire

201531,587 acresAlaska

The Our Creek Fire burned 31,587 acres, about 49 square miles, across Yukon-Koyukuk Census Area. It began on June 23, 2015.

Watch how it happened

Our Creek Fire · 2015

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
Detections401satellite 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 Our Creek Fire
Burn severity by class
SeverityShareAcres
Highmost vegetation consumed, soils altered50%15,662
Moderatemixed: many trees killed, some survive29%9,228
Lowsurface fire, most trees survive12%3,867
Unburned to lowislands inside the perimeter, little change5.7%1,793
Increased greennessvegetation greener after the fire than before0.1%19
Not mappedcloud, shadow or water in the satellite images3.2%1,018

50% of the area inside the perimeter burned at high severity, about 15,662 acres; 79% burned at moderate or high 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
Yukon-Koyukuk Census AreaAK31,621

Other large fires in Alaska in 2015

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