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Kasunko fire, April 2026 Kasunko, Wara Wara Bafod

Out · last detection 28 Apr 2026, 14:13 UTC

The fire started on 15 April 2026 in Kasunko, Sierra Leone, and satellites saw it burning for 14 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 1,215 hectares from heat detections, spread across 2 municipalities.

It is the 724th largest in Northern since 2016 (of 1112 with a page). Number 213 in Sierra Leone in 2026, of 305.

Compare with…
Burnt area
1,215ha
GWIS perimeter (Copernicus)
Duration
14days
15 Apr 2026 – 28 Apr 2026
Municipalities hit
2
chiefdoms
Started on
15 Apr
2026
Heat detections
19
in a single hotspot: 34 MW
Average daily power
31MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 15 Apr28 Apr
28 Apr 2026

How it evolved, day by day

15 Apr 2026 · 21 MW · 3 16 Apr 2026 · 22 MW · 2 17 Apr 2026 · 2 MW · 1 21 Apr 2026 · 127 MW · 8 23 Apr 2026 · 8 MW · 1 25 Apr 2026 · 31 MW · 3 28 Apr 2026 · 6 MW · 1
15 Apr 16 Apr 17 Apr 21 Apr 23 Apr 25 Apr 28 Apr

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

This area had burned before

22% of the perimeter overlaps earlier fires recorded since 2016: 272 ha in 2023.

How big is it?

10 km
It burned the equivalent of 0.8% of the area of London (12 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. Kasunko where it started
    906 ha reached on 15 Apr
    1.0 %
  2. 317 ha reached on 21 Apr
    0.3 %

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.

Before and after, from space

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

Before · 8 Apr 2026
After · 5 May 2026

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 21 April 2026 the air beside the fire reached 55 µg/m³ of PM2.5. That day averaged 51: 3.4 times the WHO daily guideline (15).

PM2.5 peak55 µg/m³
Days over the guideline19 days
PM10112 µg/m³
Optical depth0.84
1314151617181920212223242526272829301
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 · 19Every 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 Sierra Leone ›

Frequently asked questions

How long did the Kasunko fire last?
According to the heat detections seen by satellite inside the perimeter, it burned from 15 April 2026 to 28 April 2026 (14 days). The perimeter dates it from 19 April 2026 to 25 April 2026.
How much area did it burn?
The perimeter GWIS (Copernicus) rebuilt from heat detections is 1,215 hectares (12.2 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire entered 2 municipalities: Kasunko (906 ha, 1.0 %); Wara Wara Bafod (317 ha, 0.3 %).
Where does this data come from?
From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Sierra Leone (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 adjusted with the VIIRS detections inside the perimeter, which said 19 April 2026 to 25 April 2026. 19 Suomi-NPP VIIRS detections on those dates.
  • We have not matched this page with any official record.

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 ADM3 (Creative Commons Attribution 4.0 (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.