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Anka fire, 9 November 2025 Anka

Out · last detection 17 Nov 2025, 12:46 UTC

The fire started on 9 November 2025 in Anka, Nigeria, and satellites saw it burning for 8 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 4,332 hectares from heat detections, spread across a single municipality.

It is the 45th largest in Zamfara since 2016 (of 208 with a page). Number 89 in Nigeria in 2025, of 294.

The power measured by the satellite is low (26.4 MW in the strongest hotspot), more typical of grass or stubble burning, or a slow surface fire, than of a large crown fire.

Burnt area
4,332ha
GWIS perimeter (Copernicus)
Duration
8days
9 Nov 2025 – 16 Nov 2025
Municipalities hit
1
local government areas
Started on
9 Nov
2025
Heat detections
78
in a single hotspot: 26 MW
Danger at start
33
High · FWI index
Energy released
542MW
sum of detected power

Where it burned

17 Nov 2025
HOTSPOTS BY DAY 9 Nov16 Nov

How it evolved, day by day

910111314151617

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

The weather it burned in

36°high
41km/h · peak gust
19%lowest humidity

It had gone 29 days without rain (1 mm or more) when it started.

This area had burned before

91% of the perimeter overlaps earlier fires recorded since 2016: 1,631 ha in 2016, 55 ha in 2017, 475 ha in 2019, 1,741 ha in 2020, 1,204 ha in 2021, 1,312 ha in 2022, 1,428 ha in 2023, 1,790 ha in 2024. Part of it burned more than once, so the yearly figures add up to more than the 3,957 ha that had burned before.

What happened to each town

  1. Anka where it started
    4,359 ha reached on 6 Nov
    1.7 %

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)
9 Nov 35.5 °C 21 % 28 km/h 0.0 mm High 33
10 Nov 35.5 °C 26 % 28 km/h 0.0 mm High 33
11 Nov 35.8 °C 23 % 34 km/h 0.0 mm High 37
12 Nov 35.1 °C 19 % 37 km/h 0.0 mm Very high 39
13 Nov 34.2 °C 23 % 34 km/h 0.0 mm High 38
14 Nov 34.2 °C 27 % 32 km/h 0.0 mm High 37
15 Nov 33.8 °C 26 % 39 km/h 0.0 mm Very high 41
16 Nov 32.4 °C 25 % 41 km/h 0.0 mm Very high 43
17 Nov after 31.6 °C 24 % 39 km/h 0.0 mm Very high 41
18 Nov after 33.2 °C 25 % 31 km/h 0.0 mm High 38
19 Nov after 34.8 °C 26 % 23 km/h 0.0 mm High 34
20 Nov after 35.6 °C 25 % 26 km/h 0.0 mm High 35
21 Nov after 35.9 °C 24 % 26 km/h 0.0 mm High 36
22 Nov after 34.6 °C 20 % 31 km/h 0.0 mm Very high 39
23 Nov after 34.6 °C 19 % 27 km/h 0.0 mm Very high 40
24 Nov after 34.9 °C 18 % 34 km/h 0.0 mm Very high 43
25 Nov after 34.8 °C 22 % 36 km/h 0.0 mm Very high 44
26 Nov after 35.7 °C 23 % 30 km/h 0.0 mm Very high 41

Before and after, from space

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

Before · 2 Nov 2025
After · 23 Nov 2025

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 · Copernicus

On 18 November 2025 the air beside the fire reached 104 µg/m³ of PM2.5. That day averaged 86: 5.7 times the WHO daily guideline (15).

PM2.5 peak104 µg/m³
Days over the guideline13 days
PM10671 µg/m³
Optical depth0.65
78910111213141516171819
Good Fair Moderate Poor Very poor Extremely poor

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)

Detections table · 78Every 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 Nigeria ›

Frequently asked questions

How long did the Anka fire last?
GWIS (Copernicus) dates it between 9 November 2025 and 16 November 2025: 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 4,332 hectares (43.3 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Anka (4,359 ha, 1.7 %).
What was the weather like?
During the fire the temperature reached 35.8 °C, humidity dropped to 19 % and gusts hit 41 km/h. The fire danger index (FWI) reached 43, class Very high.
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

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
What do you think is wrong?

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.

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.