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Kongbora fire, April 2017 Kongbora

Out · last detection 13 Apr 2017, 13:57 UTC

The fire started on 11 April 2017 in Kongbora, Sierra Leone, and satellites saw it burning for 3 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 1,963 hectares from heat detections, spread across a single municipality.

It is the 80th largest in Southern since 2016 (of 393 with a page). Number 53 in Sierra Leone in 2017, of 207.

Burnt area
1,963ha
GWIS perimeter (Copernicus)
Duration
3days
11 Apr 2017 – 13 Apr 2017
Municipalities hit
1
chiefdoms
Started on
11 Apr
2017
Heat detections
37
in a single hotspot: 82 MW
Energy released
846MW
sum of detected power

Where it burned

13 Apr 2017
HOTSPOTS BY DAY 11 Apr13 Apr

How it evolved, day by day

1113

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

This area had burned before

37% of the perimeter overlaps earlier fires recorded since 2016: 848 ha in 2016. Part of it burned more than once, so the yearly figures add up to more than the 727 ha that had burned before.

What happened to each town

  1. Kongbora where it started
    1,975 ha reached on 11 Apr
    5.2 %

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.

Before and after, from space

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

Before · 4 Apr 2017
After · 20 Apr 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 · 37Every 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 Kongbora fire last?
GWIS (Copernicus) dates it between 11 April 2017 and 13 April 2017: 3 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 1,963 hectares (19.6 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Kongbora (1,975 ha, 5.2 %).
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

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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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.