AURSEEAursee · notable fire
Fire near Riacho Frio, Piauí, Brazil, October 2026
Detected · VIIRS 375 m (S-NPP, NOAA-20, NOAA-21) · -9.891, -44.850 · first seen 6 October 2026, 03:45 UTC
14,230 MWpeak summed radiative power, 8 Oct
245detections on that day
18 kmwidest extent of the group
3days in the record
First detected 6 October 2026, 03:45 UTC, 35 km NNE of Riacho Frio. Last detected 10 October 2026, 05:06 UTC.
Day by day
Summed radiative power per UTC day, MW.
| Day (UTC) | MW | Detections | Extent km | Night |
|---|---|---|---|---|
| 2026-10-06 | 3,155 | 220 | 18 | 25% |
| 2026-10-08 | 14,230 | 245 | 10 | 22% |
| 2026-10-09 | 8,547 | 280 | 13 | 19% |
MW is fire radiative power summed over every detection grouped into the fire in a 24-hour window, across three satellites. Extent is the width of the group of detections, not a mapped perimeter. Night is the share of detections from the night pass. How these are measured.
Related
- Fire history of BrazilEvery year since 2012.
- Fires in Brazil nowToday's fires, updated every hour.
- All notable firesEvery fire above 5,000 MW since the record began.
Fire alerts by email
Free. Pick a town and we email you when satellites detect fire within 30 km of it.