Zanaga fire, 11 July 2026 Zanaga
The fire started on 11 July 2026 in Zanaga, Congo - Brazzaville, and satellites saw it burning for 3 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 1,518 hectares from heat detections, spread across a single municipality.
It is the 4th largest in Brazzaville since 2016 (of 12 with a page). Number 135 in Congo - Brazzaville in 2026, of 360.
We have the GWIS perimeter for this fire, but not yet its hotspots: NASA publishes the yearly hotspot archive only once the year closes. The page picks them up automatically when they are available.
- Burnt area
- 1,518ha
- GWIS perimeter (Copernicus)
- Duration
- 3days
- 11 Jul 2026 – 13 Jul 2026
- Municipalities hit
- 1
- districts
- Started on
- 11 Jul
- 2026
Where it burned
This area had burned before
36% of the perimeter overlaps earlier fires recorded since 2016: 545 ha in 2017.
What happened to each town
-
Zanaga where it started1,528 ha0.3 %
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.
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 13 July 2026 the air beside the fire reached 107 µg/m³ of PM2.5. That day averaged 72: 4.8 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)
Other fires nearby
Frequently asked questions
- How long did the Zanaga fire last?
- GWIS (Copernicus) dates it between 11 July 2026 and 13 July 2026: 3 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 1,518 hectares (15.2 km²). It is an estimate: official national figures may differ.
- Which municipalities burned?
- The fire only entered Zanaga (1,528 ha, 0.3 %).
- Where does this data come from?
- From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Congo - Brazzaville (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.
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 (Public Domain). 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.