Tors Fire
200431,979 acresAlaska
The Tors Fire burned 31,979 acres, about 50 square miles, across Fairbanks North Star Borough. It began on July 17, 2004.
Watch how it happenedTors Fire · 2004
How it happened
Watch it burn in the order satellites saw it, coloured by how severely each place burned.
How severely it burned
Burn severity inside the final perimeter, classified from Landsat images taken before and after the fire.
| Severity | Share | Acres |
|---|---|---|
| Highmost vegetation consumed, soils altered | 12% | 3,901 |
| Moderatemixed: many trees killed, some survive | 33% | 10,712 |
| Lowsurface fire, most trees survive | 14% | 4,628 |
| Unburned to lowislands inside the perimeter, little change | 9.4% | 3,001 |
| Increased greennessvegetation greener after the fire than before | 0.3% | 97 |
| Not mappedcloud, shadow or water in the satellite images | 30% | 9,640 |
12% of the area inside the perimeter burned at high severity, about 3,901 acres; 46% 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.
| Fairbanks North Star Borough | AK | 32,001 |
Other large fires in Alaska in 2004
- Boundary Fire537,728 acres
- Dall City Fire530,540 acres
- Taylor Highway Complex (Billy Creek)460,335 acres
- North Dag Fire429,332 acres
- Pingo Fire353,275 acres
- Taylor Highway Complex (Chicken)337,961 acres
- Winter Trail Fire295,750 acres
- Edwards Creek Fire286,038 acres
Monitoring Trends in Burn Severity (USGS and U.S. Forest Service). Type recorded: Wildfire.