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Karimama fire, 18 November 2017 Karimama

Out · last detection 4 Dec 2017, 13:52 UTC

The fire started on 18 November 2017 in Karimama, Benin, and satellites saw it burning for 16 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 13,889 hectares from heat detections, spread across a single municipality.

It is the 2th largest in Alibori since 2016 (of 534 with a page). The largest in Benin in 2017, of 152.

Compare with…
Burnt area
13,889ha
GWIS perimeter (Copernicus)
Duration
16days
18 Nov 2017 – 3 Dec 2017
Municipalities hit
1
communes
Started on
18 Nov
2017
Heat detections
489
in a single hotspot: 52 MW
Danger at start
45
Very high · FWI index
Average daily power
156MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 18 Nov3 Dec
4 Dec 2017

How it evolved, day by day

18 Nov 2017 · 232 MW · 28 19 Nov 2017 · 203 MW · 26 20 Nov 2017 · 68 MW · 4 21 Nov 2017 · 60 MW · 7 22 Nov 2017 · 15 MW · 16 23 Nov 2017 · 62 MW · 10 24 Nov 2017 · 218 MW · 14 25 Nov 2017 · 358 MW · 61 26 Nov 2017 · 506 MW · 74 27 Nov 2017 · 258 MW · 72 28 Nov 2017 · 93 MW · 45 29 Nov 2017 · 84 MW · 19 30 Nov 2017 · 170 MW · 34 1 Dec 2017 · 214 MW · 45 2 Dec 2017 · 70 MW · 15 3 Dec 2017 · 13 MW · 9 4 Dec 2017 · 22 MW · 10
18 Nov 21 Nov 24 Nov 26 Nov 27 Nov 30 Nov 3 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

38°high
36km/h · peak gust
10%lowest humidity

It had gone 43 days without rain (1 mm or more) when it started.

This area had burned before

22% of the perimeter overlaps earlier fires recorded since 2016: 3,245 ha in 2016. Part of it burned more than once, so the yearly figures add up to more than the 3,006 ha that had burned before.

How big is it?

10 km
It burned the equivalent of 8.8% of the area of London (139 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
    13,985 ha reached on 18 Nov
    2.3 %

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 2015
Built-up area< 0.1 ha
Residents< 20

Inside the perimeter there was no noticeable built-up land and almost nobody lived there (GHSL 2015, 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)
18 Nov 37.8 °C 18 % 18 km/h 0.0 mm Very high 45
19 Nov 37.4 °C 22 % 20 km/h 0.0 mm Very high 43
20 Nov 35.0 °C 32 % 23 km/h 0.0 mm High 36
21 Nov 35.4 °C 18 % 26 km/h 0.0 mm Very high 41
22 Nov 35.7 °C 15 % 34 km/h 0.0 mm Very high 49
23 Nov 34.8 °C 14 % 31 km/h 0.0 mm Very high 48
24 Nov 34.6 °C 11 % 32 km/h 0.0 mm Extreme 50
25 Nov 34.8 °C 12 % 32 km/h 0.0 mm Extreme 50
26 Nov 35.3 °C 10 % 34 km/h 0.0 mm Extreme 54
27 Nov 34.6 °C 14 % 36 km/h 0.0 mm Extreme 54
28 Nov 34.4 °C 14 % 34 km/h 0.0 mm Extreme 54
29 Nov 35.7 °C 13 % 31 km/h 0.0 mm Extreme 52
30 Nov 35.7 °C 14 % 31 km/h 0.0 mm Extreme 53
1 Dec 36.3 °C 13 % 32 km/h 0.0 mm Extreme 54
2 Dec 34.9 °C 13 % 31 km/h 0.0 mm Extreme 51
3 Dec 34.7 °C 11 % 30 km/h 0.0 mm Extreme 52
4 Dec after 36.2 °C 14 % 28 km/h 0.0 mm Extreme 51
5 Dec after 35.7 °C 11 % 28 km/h 0.0 mm Extreme 52
6 Dec after 34.9 °C 13 % 31 km/h 0.0 mm Extreme 53
7 Dec after 33.9 °C 19 % 31 km/h 0.0 mm Extreme 50
8 Dec after 32.0 °C 23 % 31 km/h 0.0 mm Very high 46
9 Dec after 30.2 °C 22 % 31 km/h 0.0 mm Very high 44
10 Dec after 29.8 °C 17 % 38 km/h 0.0 mm Very high 49
11 Dec after 31.2 °C 17 % 28 km/h 0.0 mm Very high 43
12 Dec after 30.0 °C 19 % 29 km/h 0.0 mm Very high 45
13 Dec after 32.8 °C 27 % 29 km/h 0.0 mm Very high 40

Before and after, from space

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

Before · 11 Nov 2017
After · 10 Dec 2017

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 · 489Every 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 18 November 2017 and 3 December 2017: 16 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 13,889 hectares (138.9 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Karimama (13,985 ha, 2.3 %).
What was the weather like?
During the fire the temperature reached 37.8 °C, humidity dropped to 10 % and gusts hit 36 km/h. The fire danger index (FWI) reached 54, 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. 489 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 2015, 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.