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NG · Nigeria · –

Anambra East fire, 23 January 2016 Anambra East

Out · last detection 26 Jan 2016, 12:24 UTC

The fire started on 23 January 2016 in Anambra East, Nigeria, and satellites saw it burning for 7 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 2,035 hectares from heat detections, spread across a single municipality.

Number 190 in Nigeria in 2016, of 198.

The power measured by the satellite is low (22.1 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
2,035ha
GWIS perimeter (Copernicus)
Duration
7days
23 Jan 2016 – 29 Jan 2016
Municipalities hit
1
local government areas
Started on
23 Jan
2016
Heat detections
68
in a single hotspot: 22 MW
Danger at start
51
Extreme · FWI index
Average daily power
119MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 23 Jan29 Jan
26 Jan 2016

How it evolved, day by day

23 Jan 2016 · 54 MW · 6 24 Jan 2016 · 316 MW · 35 25 Jan 2016 · 90 MW · 22 26 Jan 2016 · 17 MW · 5
23 Jan 24 Jan 25 Jan 26 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
43km/h · peak gust
7%lowest humidity

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

This area had burned before

No earlier perimeters overlap this fire since 2016, when the satellite record begins.

How big is it?

10 km
It burned the equivalent of 1.3% of the area of London (20 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. Anambra East where it started
    2,049 ha reached on 23 Jan
    3.3 %

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 area0.12 ha
Residents≈ 70

Inside the perimeter there were about 0.12 hectares of built-up land and about 70 residents (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)

Started with Very dry air: 27 % of the area in Nigeria 60 days without rain: 42 % of the area in Nigeria

Day High Min. humidity Peak gust Rain Danger (FWI)
23 Jan 37.9 °C 7 % 28 km/h 0.0 mm Extreme 51
24 Jan 36.1 °C 8 % 31 km/h 0.0 mm Extreme 54
25 Jan 36.9 °C 11 % 43 km/h 0.0 mm Extreme 63
26 Jan 35.5 °C 12 % 37 km/h 0.0 mm Extreme 59
27 Jan 36.7 °C 11 % 42 km/h 0.0 mm Extreme 62
28 Jan 35.9 °C 13 % 39 km/h 0.0 mm Extreme 60
29 Jan 37.1 °C 10 % 39 km/h 0.0 mm Extreme 61
30 Jan after 37.2 °C 10 % 38 km/h 0.0 mm Extreme 60
31 Jan after 36.3 °C 11 % 23 km/h 0.0 mm Extreme 54
1 Feb after 36.9 °C 12 % 22 km/h 0.0 mm Very high 49
2 Feb after 37.6 °C 12 % 20 km/h 0.0 mm Extreme 51
3 Feb after 37.1 °C 28 % 23 km/h 0.0 mm Very high 43
4 Feb after 37.4 °C 27 % 22 km/h 0.0 mm Very high 42
5 Feb after 39.2 °C 10 % 25 km/h 0.0 mm Extreme 52
6 Feb after 39.0 °C 12 % 24 km/h 0.0 mm Very high 49
7 Feb after 39.9 °C 10 % 27 km/h 0.0 mm Extreme 53
8 Feb after 37.1 °C 22 % 23 km/h 0.0 mm Very high 45

Its twins: fires that started in the same weather

It started with an FWI of 51.0, a minimum humidity of 7% and more than two months without rain. Fires in the area that started in weather like this since 2016: 25.

FWI at the start 51.0
Minimum humidity 7 %
Days without rain 60+
this fire chosen twins rest of the area
Almost identicalSimilar

Outlines of the closest twins

Agatu fire, January 2018
2,310 ha 5 days FWI 50.9 Min. humidity 7 % 161 km away, in 2018

First rain (1 mm or more) after it ended: none in the following ten days.

What happened to them

8 days
median duration
2,510 ha
median area
100 %
went past 1,000 ha
2.5 mm
rain at the end (median; 9 of 25 had it)

It burned an area similar to its twins (2,035 ha against a median of 2,510 ha) and lasted 7 days, against 8 days.

In 16 of 25, not even 1 mm fell in the ten days after the end: they went out without rain. In the rest, the first rainy day brought a median of 2.5 mm.

This is a bank of analogues: it shows what usually happens, not what will happen. With fewer than 15 twins we give no figures. How we calculate it

How it ended

—first rain
—no rain in ten days
43km/h · max. gust

It was considered over on 29 Jan, and not even 1 mm fell in the following ten days: it went out without rain. Twins with rain when they ended: 9 of 25, with a median of 2.5 mm.

Weather on this page: Open-Meteo.com (CC BY 4.0) · Copernicus Climate Change Service (ERA5)

How a twin is chosen

  • Same area: fires that have already ended, less than 250 km from this one, since 2016.
  • Same start: we compare the FWI on the first day, the minimum humidity that day and the run of days without rain before it. The slider sets how much they may differ.
  • Only pages with final weather data (ERA5 reanalysis) calculated in the same way as this fire’s; agricultural and grass burns and pages with data under review are left out.
  • Fires burning at the same time as this one (a week before or after) are left out: they share the same spell of weather and do not count as a precedent.
  • They are sorted by similarity, and the outlines of the first five are drawn.

How we calculate it

Before and after, from space

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

Before · 16 Jan 2016
After · 5 Feb 2016

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 · 68Every 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 Anambra East fire last?
According to the heat detections seen by satellite inside the perimeter, it burned from 23 January 2016 to 29 January 2016 (7 days). The perimeter dates it from 23 January 2016 to 26 January 2016.
How much area did it burn?
The perimeter GWIS (Copernicus) rebuilt from heat detections is 2,035 hectares (20.4 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Anambra East (2,049 ha, 3.3 %).
What was the weather like?
During the fire the temperature reached 37.9 °C, humidity dropped to 7 % and gusts hit 43 km/h. The fire danger index (FWI) reached 63, 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.
How did the fires that started in similar weather in this area end?
Fires less than 250 km away that started since 2016 with a similar FWI, humidity and dry spell: 25. Their median duration was 8 days and their median area 2,510 ha; 100 % went past 1,000 ha. In 16 of 25, not even 1 mm fell in the ten days after the end: they went out without rain. In the rest, the first rainy day brought a median of 2.5 mm.

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

History of this page · 1 Changes in area, dates, name, official record or merged pages, compared every night since 24 October 2026.
  1. Last day with fire: 26 January 2016 → 29 January 2016.

RSS Changes to this page With cross-checks and a citable version

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.

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 23 January 2016 to 26 January 2016. 68 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 (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.