Aursee
Wildfires in Tochigi Prefecture
Detected · VIIRS 375 m · Suomi NPP, NOAA-20, NOAA-21 · last 24 hours · updated 2026-10-12 06:20 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 483 km² of Tochigi Prefecture at least once. In an average year it detected fire in 69 km², ranking 8th of 47 regions of Japan.
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 2025, with 105 km² detected; the quietest was 2012, with 32 km². The 2021–2025 average is 27% higher 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.
March, April and May together hold 33% of the fire-days in the record. The single busiest day was 1 March 2025, with detections in 26 cells.
Ground that burns again
Of the 483 km² with at least one detection, 16% had detections in three or more different years.
| Years with a detection | km² | Share |
|---|---|---|
| 1 year | 323 | 67% |
| 2 years | 81 | 17% |
| 3 to 5 years | 45 | 9.3% |
| 6 to 10 years | 24 | 5.0% |
| 11 years or more | 10 | 2.1% |
The half-degree square with the most fire-days is centred at 36.25, 139.75 and holds 83% of the region's fire-days.
The figures
Show the table
| Year | Detected km² | Fire-days |
|---|---|---|
| 2012 | 32 | 221 |
| 2013 | 59 | 232 |
| 2014 | 74 | 242 |
| 2015 | 83 | 232 |
| 2016 | 63 | 205 |
| 2017 | 57 | 227 |
| 2018 | 68 | 264 |
| 2019 | 77 | 249 |
| 2020 | 55 | 217 |
| 2021 | 62 | 246 |
| 2022 | 63 | 244 |
| 2023 | 84 | 298 |
| 2024 | 81 | 214 |
| 2025 | 105 | 224 |
Other regions of Japan
- Kumamoto Prefecture142 km² in an average year
- Fukuoka Prefecture100 km² in an average year
- Hokkaidō96 km² in an average year
- Aichi Prefecture94 km² in an average year
- Chiba Prefecture77 km² in an average year
- Ōita Prefecture72 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
- Saitama Prefecture44 km
- Ibaraki Prefecture105 km
- Chiba Prefecture111 km
- Kanagawa Prefecture111 km
- Niigata Prefecture210 km
- Miyagi Prefecture258 km