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Wildfires in Alaska
Detected · VIIRS 375 m · Suomi NPP, NOAA-20, NOAA-21 · last 24 hours · updated 2026-10-11 08:31 UTC
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Fire history, 2012–2025
Detected · VIIRS S-NPP 375 m · 0.01° cells (~1.1 km) · complete years 2012–2025 · built 2026-09-23
Between 2012 and 2025, VIIRS detected fire in 57,270 km² of Alaska at least once. In an average year it detected fire in 4,210 km², ranking 12th of 51 regions of United States.
Year by year
Detected area per year, km². Area of 0.01° cells with at least one detection in the year.
The busiest year was 2015, with 16,650 km² detected; the quietest was 2020, with 718 km². The 2021–2025 average is 20% lower than the 2012–2016 average.
Through the year
Share of all fire-days 2012–2025 by month. A fire-day is one cell with a detection on one day.
June, July and August together hold 96% of the fire-days in the record. The single busiest day was 25 June 2015, with detections in 5,088 cells.
Ground that burns again
Of the 57,270 km² with at least one detection, 0.2% had detections in three or more different years.
| Years with a detection | km² | Share |
|---|---|---|
| 1 year | 55,960 | 98% |
| 2 years | 1,170 | 2.0% |
| 3 to 5 years | 114 | 0.2% |
| 6 to 10 years | 18 | 0.0% |
| 11 years or more | 8.9 | 0.0% |
The half-degree square with the most fire-days is centred at 66.75, -143.25 and holds 2.2% of the region's fire-days.
The figures
Show the table
| Year | Detected km² | Fire-days |
|---|---|---|
| 2012 | 860 | 2,388 |
| 2013 | 4,380 | 12,900 |
| 2014 | 959 | 2,205 |
| 2015 | 16,650 | 50,149 |
| 2016 | 1,840 | 5,169 |
| 2017 | 2,070 | 6,168 |
| 2018 | 1,330 | 4,078 |
| 2019 | 10,450 | 41,372 |
| 2020 | 718 | 1,863 |
| 2021 | 1,050 | 3,415 |
| 2022 | 11,670 | 35,478 |
| 2023 | 1,470 | 4,944 |
| 2024 | 2,170 | 6,293 |
| 2025 | 3,310 | 9,587 |
Other regions of United States
- Texas13,010 km² in an average year
- Georgia10,210 km² in an average year
- California9,720 km² in an average year
- Florida8,510 km² in an average year
- Kansas6,780 km² in an average year
- Oklahoma6,770 km² in an average year
- How these figures are madeDetected area, cells, and the single-satellite record.
Detected area counts every 0.01° cell with at least one VIIRS detection, so a small fire counts as a whole cell and a fire missed by cloud or between passes is absent. Borders: Natural Earth 1:10m. 2012 begins on 20 January.
Nearby regions
- Yukon, Canada406 km