Anta fire, 12 October 2025 Anta
The fire started on 12 October 2025 in Anta, Argentina, and satellites saw it burning for 4 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 1,501 hectares from heat detections, spread across a single municipality.
It is the 231th largest in Salta since 2016 (of 231 with a page). Number 205 in Argentina in 2025, of 206.
- Burnt area
- 1,501ha
- GWIS perimeter (Copernicus)
- Duration
- 4days
- 12 Oct 2025 – 15 Oct 2025
- Municipalities hit
- 1
- departments
- Started on
- 12 Oct
- 2025
- Heat detections
- 102
- in a single hotspot: 259 MW
- Danger at start
- 83
- Very extreme · FWI index
- Energy released
- 3.7GW
- sum of detected power
Where it burned
How it evolved, day by day
Fire radiative power detected each day, in megawatts, and number of hotspots. The magenta bar marks the peak day.
The weather it burned in
It had gone 23 days without rain (1 mm or more) when it started. Rain came after the fire: 5.9 mm on 17 Oct.
This area had burned before
85% of the perimeter overlaps earlier fires recorded since 2016: 1,215 ha in 2016, 350 ha in 2017, 809 ha in 2020. Part of it burned more than once, so the yearly figures add up to more than the 1,280 ha that had burned before.
- 1,215 ha Anta fire, September 2016 2,753 ha in total; the hectares shown are those it shares with this fire
- 809 ha Anta fire, July 2020 1,775 ha in total; the hectares shown are those it shares with this fire
- 350 ha Anta fire, September 2017 4,346 ha in total; the hectares shown are those it shares with this fire
What happened to each town
-
Anta where it started1,510 ha reached on 12 Oct0.1 %
Burnt area inside each municipality, from crossing the GWIS perimeter with administrative boundaries. The distance is from the town centre to the nearest fire: staying a kilometre away does not mean it reached the houses.
The weather day by day
ECMWF ERA5 reanalysis at the fire location, the standard reference for past weather, and the Canadian Fire Weather Index (the same system Copernicus uses), computed by WorldFires from that data. Days after the fire run until the first rain.
Open-Meteo.com (CC BY 4.0) · Copernicus Climate Change Service (ERA5)
| Day | High | Min. humidity | Peak gust | Rain | Danger (FWI) |
|---|---|---|---|---|---|
| 12 Oct | 31.5 °C | 13 % | 70 km/h | 0.0 mm | Very extreme 83 |
| 13 Oct | 33.2 °C | 14 % | 32 km/h | 0.0 mm | Extreme 51 |
| 14 Oct | 34.4 °C | 13 % | 45 km/h | 0.0 mm | Extreme 59 |
| 15 Oct | 37.5 °C | 21 % | 57 km/h | 0.0 mm | Extreme 62 |
| 16 Oct after | 41.3 °C | 21 % | 53 km/h | 0.7 mm | Extreme 54 |
| 17 Oct after | 32.2 °C | 49 % | 45 km/h | 5.9 mm | Low 8 |
Before and after, from space
Drag the line to compare the same ground before the fire and after it.
If the day is cloudy, change the date: each satellite passes once a day. In false colour the burnt ground looks brown or red.
The smoke
CAMS · CopernicusOn 18 October 2025 the air beside the fire reached 24 µg/m³ of PM2.5. That day averaged 16: 1.0 times the WHO daily guideline (15).
Particles from the Copernicus CAMS model at the centre of the perimeter; these are not measurements in each town. The pale bar is the worst hour, the solid one the daily average.
Open-Meteo.com (CC BY 4.0) · Copernicus Atmosphere Monitoring Service (CAMS)
Detections table · 102Every satellite heat detection, one by one, with time, satellite, power and coordinates.
| Date and time | Satellite | FRP (MW) | Lat | Lon |
|---|
Other fires nearby
- 4,346 haAnta19 September 2017 · 3 days · 4 km away
- 5,462 haAnta28 September 2019 · 4 days · 22 km away
- 4,900 haAnta14 September 2019 · 3 days · 23 km away
- 3,465 haRivadaviaNovember 2020 · 5 days · 24 km away
- 5,924 haRivadavia9 September 2016 · 4 days · 27 km away
- 4,505 haRivadavia7 September 2016 · 16 days · 33 km away
Frequently asked questions
- How long did the Anta fire last?
- GWIS (Copernicus) dates it between 12 October 2025 and 15 October 2025: 4 days between the first and last heat detection of the perimeter.
- How much area did it burn?
- The perimeter GWIS (Copernicus) rebuilt from heat detections is 1,501 hectares (15.0 km²). It is an estimate: official national figures may differ.
- Which municipalities burned?
- The fire only entered Anta (1,510 ha, 0.1 %).
- What was the weather like?
- During the fire the temperature reached 37.5 °C, humidity dropped to 13 % and gusts hit 70 km/h. The fire danger index (FWI) reached 83, class Very extreme.
- Where does this data come from?
- From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Argentina (geoBoundaries). It is not an official report.
Where to verify it
A satellite detection is not an official report. Final figures and the fire’s status are published by each country’s emergency service.
Emergency number: 911 · 100
Satellite cross-check
Does something look wrong on this page?
This page is built from satellite data and official records, and it sometimes gets things wrong: the wrong dates, the wrong town, two fires merged into one, or something that was not a wildfire at all. If you know this fire first-hand (you live nearby, saw it, fought it or reported on it), tell us what really happened and we will check it.
Report an error
Where this data comes from
The perimeter comes from the Copernicus Global Wildfire Information System (GWIS), which rebuilds it from MODIS and VIIRS heat detections and publishes it under CC BY 4.0. It is not measured on imagery as in Europe, so it is an estimate. Heat detections come from the VIIRS sensors aboard Suomi-NPP and NOAA-20, distributed by NASA FIRMS at 375 m resolution. Municipal boundaries come from geoBoundaries ADM2 (Creative Commons Attribution 3.0 Intergovernmental Organisations (CC BY 3.0 IGO)). The area per municipality is computed by WorldFires by crossing the perimeter with those boundaries, so it may differ from each country’s official figure.