How long did the Mariga fire last?

According to the heat detections seen by satellite inside the perimeter, it burned from 31 December 2020 to 21 January 2021 (22 days). The perimeter dates it from 7 January 2021 to 18 January 2021.

How much area did it burn?

The perimeter GWIS (Copernicus) rebuilt from heat detections is 3,693 hectares (36.9 km²). It is an estimate: official national figures may differ.

Which municipalities burned?

The fire only entered Mariga (3,714 ha, 0.6 %).

What was the weather like?

During the fire the temperature reached 37.9 °C, humidity dropped to 9 % and gusts hit 40 km/h. The fire danger index (FWI) reached 53, class Extreme.

Where does this data come from?

From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Nigeria (geoBoundaries). It is not an official report.

NG · Nigeria · 2020-12-31 → 2021-01-21

Mariga fire, 31 December 2020 Mariga

Out · last detection 21 Jan 2021, 13:00 UTC

The fire started on 31 December 2020 in Mariga, Nigeria, and satellites saw it burning for 22 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 3,693 hectares from heat detections, spread across a single municipality.

It is the 110th largest in Niger since 2016 (of 271 with a page). Number 32 in Nigeria in 2020, of 160.

Compare with…

Suggestions: Mariga · 2016 Kontagora · 2025 Mariga · 2020 Mariga · 2023

Burnt area: 3,693ha; GWIS perimeter (Copernicus)
Duration: 22days; 31 Dec 2020 – 21 Jan 2021
Municipalities hit: 1; local government areas
Started on: 31 Dec; 2020
Heat detections: 156; in a single hotspot: 93 MW
Danger at start: 52; Extreme · FWI index
Average daily power: 93MW; detected power per day, on average

HOTSPOTS BY DAY 31 Dec21 Jan

Play back 21 Jan 2021

How it evolved, day by day

31 Dec 6 Jan 9 Jan 10 Jan 12 Jan 15 Jan 18 Jan 21 Jan

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

40km/h · peak gust

9%lowest humidity

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

This area had burned before

3% of the perimeter overlaps earlier fires recorded since 2016: 121 ha in 2016.

121 ha Mariga fire, January 2016 5,320 ha in total; the hectares shown are those it shares with this fire

How big is it?

It burned the equivalent of 2.3% of the area of London (37 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

Mariga where it started

3,714 ha reached on 31 Dec

0.6 %

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.

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	Danger (FWI)
7 Jan	37.9 °C	14 %	38 km/h	Extreme 52
8 Jan	37.6 °C	18 %	27 km/h	Very high 49
9 Jan	37.3 °C	17 %	40 km/h	Extreme 53
10 Jan	37.0 °C	17 %	35 km/h	Very high 50
11 Jan	36.4 °C	17 %	32 km/h	Very high 50
12 Jan	35.5 °C	18 %	27 km/h	Very high 48
13 Jan	35.7 °C	17 %	31 km/h	Extreme 50
14 Jan	35.5 °C	17 %	31 km/h	Extreme 51
15 Jan	34.9 °C	16 %	28 km/h	Very high 49
16 Jan	34.5 °C	17 %	28 km/h	Very high 48
17 Jan	35.6 °C	9 %	27 km/h	Very high 50
18 Jan	35.1 °C	18 %	34 km/h	Extreme 53
19 Jan	34.4 °C	16 %	41 km/h	Extreme 57
20 Jan	33.6 °C	19 %	40 km/h	Extreme 54
21 Jan	32.9 °C	18 %	35 km/h	Extreme 51
22 Jan after	33.6 °C	12 %	37 km/h	Extreme 52
23 Jan after	33.4 °C	17 %	31 km/h	Very high 49
24 Jan after	35.3 °C	16 %	31 km/h	Very high 49
25 Jan after	35.9 °C	14 %	34 km/h	Extreme 51
26 Jan after	36.7 °C	15 %	28 km/h	Very high 49
27 Jan after	37.0 °C	15 %	31 km/h	Extreme 50
28 Jan after	36.5 °C	13 %	36 km/h	Extreme 53

Before and after, from space

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

↔

Before · 24 Dec 2020

After · 28 Jan 2021

Before After

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 · 156Every 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 time	Satellite	FRP (MW)	Lat	Lon

Other fires nearby

All fires in Nigeria ›

Frequently asked questions

How long did the Mariga fire last?: According to the heat detections seen by satellite inside the perimeter, it burned from 31 December 2020 to 21 January 2021 (22 days). The perimeter dates it from 7 January 2021 to 18 January 2021.
How much area did it burn?: The perimeter GWIS (Copernicus) rebuilt from heat detections is 3,693 hectares (36.9 km²). It is an estimate: official national figures may differ.
Which municipalities burned?: The fire only entered Mariga (3,714 ha, 0.6 %).
What was the weather like?: During the fire the temperature reached 37.9 °C, humidity dropped to 9 % and gusts hit 40 km/h. The fire danger index (FWI) reached 53, class Extreme.
Where does this data come from?: From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Nigeria (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: 112 · Emergency number and official warnings ›

Satellite cross-check

NASA FIRMS ↗
GWIS · Copernicus ↗

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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What do you think is wrong?

Dates or duration Place or towns Burned area Name It was not a wildfire Same fire as another page Something else

What really happened?

Your connection to the fire (optional) Email (optional)

We will only use your email to reply about this report. Privacy. This is not an emergency service: if there is a fire now, call 112.

How we know this

Perimeter: GWIS (Copernicus), rebuilt from heat detections rather than mapped on imagery.
Dates adjusted with the VIIRS detections inside the perimeter, which said 7 January 2021 to 18 January 2021. 156 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.

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 (Creative Commons Attribution 4.0 International (CC BY 4.0)). 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.

Where it burned