A 508 Fire

199639,128 acresAlaska

The A 508 Fire burned 39,128 acres, about 61 square miles, across Yukon-Koyukuk Census Area. It began on June 19, 1996.

Watch how it happened

A 508 Fire · 1996

How it happened

See how severely each place burned, revealed outward from where it started.

About this replay
IgnitionJune 19, 1996Historical replay — order not recorded
Final area39,128 ac
Revealed—
Counties1

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 A 508 Fire
Burn severity by class
SeverityShareAcres
Highmost vegetation consumed, soils altered5.1%2,002
Moderatemixed: many trees killed, some survive20%7,873
Lowsurface fire, most trees survive30%11,679
Unburned to lowislands inside the perimeter, little change36%13,948
Increased greennessvegetation greener after the fire than before9.2%3,583
Not mappedcloud, shadow or water in the satellite images0.1%43

5% of the area inside the perimeter burned at high severity, about 2,002 acres; 25% 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 AreaAK39,154

Other large fires in Alaska in 1996

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