Idiofa fire, July 2021 Idiofa
The fire started on 21 July 2021 in Idiofa, Congo - Kinshasa, and satellites saw it burning for 11 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 5,652 hectares from heat detections, spread across a single municipality.
It is the 200th largest in Kwilu since 2016 (of 236 with a page). Number 76 in Congo - Kinshasa in 2021, of 97.
- Burnt area
- 5,652ha
- GWIS perimeter (Copernicus)
- Duration
- 11days
- 21 Jul 2021 – 31 Jul 2021
- Municipalities hit
- 1
- territories
- Started on
- 21 Jul
- 2021
- Heat detections
- 315
- in a single hotspot: 187 MW
- Danger at start
- 36
- High · FWI index
- Energy released
- 3.3GW
- 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 28 days without rain (1 mm or more) when it started. Rain came after the fire: 4.4 mm on 6 Aug.
This area had burned before
99% of the perimeter overlaps earlier fires recorded since 2016: 4,969 ha in 2016, 3,080 ha in 2017, 2,470 ha in 2018, 3,206 ha in 2019, 5,019 ha in 2020. Part of it burned more than once, so the yearly figures add up to more than the 5,604 ha that had burned before.
What happened to each town
-
Idiofa where it started5,688 ha reached on 14 Jul0.3 %
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.
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) |
|---|---|---|---|---|---|
| 21 Jul | 35.0 °C | 32 % | 23 km/h | 0.0 mm | High 36 |
| 22 Jul | 35.8 °C | 19 % | 33 km/h | 0.0 mm | Very high 40 |
| 23 Jul | 33.7 °C | 30 % | 23 km/h | 0.0 mm | High 37 |
| 24 Jul | 33.2 °C | 36 % | 26 km/h | 0.0 mm | High 33 |
| 25 Jul | 34.0 °C | 31 % | 28 km/h | 0.0 mm | High 34 |
| 26 Jul | 34.1 °C | 21 % | 38 km/h | 0.0 mm | Very high 41 |
| 27 Jul | 34.2 °C | 15 % | 39 km/h | 0.0 mm | Very high 46 |
| 28 Jul | 34.8 °C | 15 % | 18 km/h | 0.0 mm | Very high 42 |
| 29 Jul | 35.4 °C | 25 % | 20 km/h | 0.0 mm | Very high 40 |
| 30 Jul | 33.8 °C | 32 % | 21 km/h | 0.0 mm | High 36 |
| 31 Jul | 36.2 °C | 21 % | 28 km/h | 0.0 mm | Very high 40 |
| 1 Aug after | 34.5 °C | 24 % | 29 km/h | 0.0 mm | Very high 40 |
| 2 Aug after | 32.5 °C | 40 % | 24 km/h | 0.0 mm | High 32 |
| 3 Aug after | 34.7 °C | 31 % | 24 km/h | 0.0 mm | High 31 |
| 4 Aug after | 35.7 °C | 27 % | 24 km/h | 0.0 mm | High 33 |
| 5 Aug after | 34.0 °C | 37 % | 19 km/h | 0.0 mm | High 33 |
| 6 Aug after | 31.9 °C | 49 % | 30 km/h | 4.4 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.
Detections table · 315Every satellite heat detection, one by one, with time, satellite, power and coordinates.
| Date and time | Satellite | FRP (MW) | Lat | Lon |
|---|
Other fires nearby
Frequently asked questions
- How long did the Idiofa fire last?
- GWIS (Copernicus) dates it between 21 July 2021 and 31 July 2021: 11 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 5,652 hectares (56.5 km²). It is an estimate: official national figures may differ.
- Which municipalities burned?
- The fire only entered Idiofa (5,688 ha, 0.3 %).
- What was the weather like?
- During the fire the temperature reached 36.2 °C, humidity dropped to 15 % and gusts hit 39 km/h. The fire danger index (FWI) reached 46, class Very high.
- Where does this data come from?
- From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Congo - Kinshasa (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 (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.