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Karimama fire, 21 December 2020 Karimama

Out · last detection 28 Dec 2020, 01:03 UTC

The fire started on 21 December 2020 in Karimama, Benin, and satellites saw it burning for 8 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 5,813 hectares from heat detections, spread across a single municipality.

It is the 29th largest in Alibori since 2016 (of 543 with a page). Number 5 in Benin in 2020, of 94.

Compare with…
Burnt area
5,813ha
GWIS perimeter (Copernicus)
Duration
8days
21 Dec 2020 – 28 Dec 2020
Municipalities hit
1
communes
Started on
21 Dec
2020
Heat detections
152
in a single hotspot: 55 MW
Danger at start
48
Very high · FWI index
Average daily power
229MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 21 Dec28 Dec
28 Dec 2020

How it evolved, day by day

21 Dec 2020 · 121 MW · 5 22 Dec 2020 · 1,022 MW · 46 23 Dec 2020 · 461 MW · 34 24 Dec 2020 · 78 MW · 15 25 Dec 2020 · 60 MW · 20 26 Dec 2020 · 44 MW · 17 27 Dec 2020 · 46 MW · 14 28 Dec 2020 · 1 MW · 1
21 Dec 22 Dec 23 Dec 25 Dec 27 Dec

Fire radiative power detected each day, in megawatts, and number of hotspots. The magenta bar marks the peak day.

The weather it burned in

34°high
37km/h · peak gust
14%lowest humidity

It had gone more than two months without rain (1 mm or more) when it started.

This area had burned before

73% of the perimeter overlaps earlier fires recorded since 2016: 2,202 ha in 2016, 2,655 ha in 2017, 2,017 ha in 2019. Part of it burned more than once, so the yearly figures add up to more than the 4,265 ha that had burned before.

How big is it?

10 km
It burned the equivalent of 3.7% of the area of London (58 km² against 1,583 km²).

London boundary: geoBoundaries · Office for National Statistics (Open Government Licence v3.0).

This compares size, not location: both shapes are at the same scale, north up, centred on each other.

What happened to each town

  1. Karimama where it started
    5,852 ha reached on 21 Dec
    1.0 %

Burnt area inside each municipality, from crossing the GWIS perimeter with administrative boundaries. The distance runs from the point marking the centre of each area to the nearest fire: staying a kilometre away does not mean it reached the houses.

People and buildings inside the perimeter

GHSL 2020
Built-up area< 0.1 ha
Residents< 20

Inside the perimeter there was no noticeable built-up land and almost nobody lived there (GHSL 2020, satellite-based estimate).

This is an estimate on 100 m cells, made from satellite imagery and census data: it does not mean that homes burned or that anyone was harmed. The perimeter also contains land that never burned.

Source: Global Human Settlement Layer (GHS-BUILT-S and GHS-POP R2023A), European Commission Joint Research Centre (JRC), © European Union, CC BY 4.0. Sum inside the perimeter computed by WorldFires. human-settlement.emergency.copernicus.eu

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 Dec 34.4 °C 17 % 30 km/h 0.0 mm Very high 48
22 Dec 34.3 °C 14 % 30 km/h 0.0 mm Very high 50
23 Dec 33.9 °C 15 % 32 km/h 0.0 mm Extreme 51
24 Dec 34.5 °C 16 % 31 km/h 0.0 mm Extreme 52
25 Dec 32.6 °C 15 % 37 km/h 0.0 mm Extreme 56
26 Dec 31.9 °C 14 % 36 km/h 0.0 mm Extreme 53
27 Dec 31.6 °C 16 % 31 km/h 0.0 mm Very high 48
28 Dec 32.1 °C 15 % 31 km/h 0.0 mm Very high 48
29 Dec after 32.9 °C 14 % 28 km/h 0.0 mm Very high 48
30 Dec after 33.9 °C 14 % 30 km/h 0.0 mm Very high 48
31 Dec after 34.7 °C 13 % 27 km/h 0.0 mm Very high 47
1 Jan after 36.2 °C 12 % 26 km/h 0.0 mm Very high 46
2 Jan after 36.9 °C 16 % 24 km/h 0.0 mm Very high 49
3 Jan after 37.6 °C 20 % 24 km/h 0.0 mm Very high 48
4 Jan after 38.3 °C 17 % 28 km/h 0.0 mm Very high 48
5 Jan after 38.2 °C 12 % 30 km/h 0.0 mm Extreme 52
6 Jan after 38.7 °C 10 % 36 km/h 0.0 mm Extreme 60
7 Jan after 39.0 °C 11 % 36 km/h 0.0 mm Extreme 60

Before and after, from space

Drag the line to compare the same ground before the fire and after it.

Before · 14 Dec 2020
After · 4 Jan 2021

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 · 152Every satellite heat detection, one by one, with time, satellite, power and coordinates.
⬇ Download CSV Times in UTC. Each detection is a 375 m pixel: a large fire yields hundreds per pass.
Date and timeSatelliteFRP (MW)LatLon

Other fires nearby

All fires in Benin ›

Frequently asked questions

How long did the Karimama fire last?
GWIS (Copernicus) dates it between 21 December 2020 and 28 December 2020: 8 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 5,813 hectares (58.1 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Karimama (5,852 ha, 1.0 %).
What was the weather like?
During the fire the temperature reached 34.5 °C, humidity dropped to 14 % and gusts hit 37 km/h. The fire danger index (FWI) reached 56, class Extreme.
Where does this data come from?
From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Benin (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

History of this page Changes in area, dates, name, official record or merged pages, compared every night since 24 October 2026.

No changes since 24 October 2026.

RSS Changes to this page

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.

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How we know this
  • Perimeter: GWIS (Copernicus), rebuilt from heat detections rather than mapped on imagery.
  • Dates from the perimeter: the VIIRS detections inside it did not change them. 152 Suomi-NPP VIIRS detections on those dates.
  • We have not matched this page with any official record.
  • Weather: Copernicus ERA5 reanalysis at the fire location, in cells of about 25 km.
  • Built-up area and population come from the JRC Global Human Settlement Layer (epoch 2020, 100 m cells), summed inside the perimeter: an estimate of what was there, not a damage count.

How we build fire pages: methodology ›

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.