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Mongo fire, July 2024 Mongo

Out · last detection 3 Aug 2024, 00:30 UTC

The fire started on 30 July 2024 in Mongo, Gabon, and satellites saw it burning for 5 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 1,738 hectares from heat detections, spread across a single municipality.

It is the 9th largest in Nyanga since 2016 (of 34 with a page). Number 5 in Gabon in 2024, of 12.

The power measured by the satellite is low (14.8 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
1,738ha
GWIS perimeter (Copernicus)
Duration
5days
30 Jul 2024 – 3 Aug 2024
Municipalities hit
1
departments
Started on
30 Jul
2024
Heat detections
38
in a single hotspot: 15 MW
Energy released
155MW
sum of detected power

Where it burned

3 Aug 2024
HOTSPOTS BY DAY 30 Jul3 Aug

How it evolved, day by day

3031123

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

This area had burned before

43% of the perimeter overlaps earlier fires recorded since 2016: 753 ha in 2017, 58 ha in 2019. Part of it burned more than once, so the yearly figures add up to more than the 753 ha that had burned before.

What happened to each town

  1. Mongo where it started
    1,750 ha reached on 30 Jul
    0.3 %

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 · 23 Jul 2024
After · 10 Aug 2024

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 4 August 2024 the air beside the fire reached 30 µg/m³ of PM2.5. That day averaged 20: 1.3 times the WHO daily guideline (15).

PM2.5 peak30 µg/m³
Days over the guideline2 days
PM1044 µg/m³
Optical depth1.27
28293031123456
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 · 38Every 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 Gabon ›

Frequently asked questions

How long did the Mongo fire last?
GWIS (Copernicus) dates it between 30 July 2024 and 3 August 2024: 5 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 1,738 hectares (17.4 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Mongo (1,750 ha, 0.3 %).
Where does this data come from?
From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Gabon (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 ADM2 (Creative Commons Attribution 3.0 License). 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.