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Ghanzi fire, 9 August 2023 Ghanzi

Out · last detection 15 Aug 2023, 12:02 UTC

The fire started on 9 August 2023 in Ghanzi, Botswana, and satellites saw it burning for 7 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 2,368 hectares from heat detections, spread across a single municipality.

It is the 383th largest in Ghanzi since 2016 (of 451 with a page). Number 299 in Botswana in 2023, of 381.

Compare with…
Burnt area
2,368ha
GWIS perimeter (Copernicus)
Duration
7days
9 Aug 2023 – 15 Aug 2023
Municipalities hit
1
subdistricts
Started on
9 Aug
2023
Heat detections
108
in a single hotspot: 95 MW
Average daily power
328MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 9 Aug15 Aug
15 Aug 2023

How it evolved, day by day

9 Aug 2023 · 15 MW · 8 10 Aug 2023 · 63 MW · 25 11 Aug 2023 · 20 MW · 5 12 Aug 2023 · 48 MW · 5 14 Aug 2023 · 1 MW · 2 15 Aug 2023 · 1,822 MW · 63
9 Aug 10 Aug 11 Aug 12 Aug 14 Aug 15 Aug

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

This area had burned before

11% of the perimeter overlaps earlier fires recorded since 2016: 260 ha in 2021.

How big is it?

10 km
It burned the equivalent of 1.5% of the area of London (24 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. Ghanzi where it started
    2,392 ha reached on 9 Aug
    0.0 %

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 2025
Built-up area< 0.1 ha
Residents< 20

Inside the perimeter there was no noticeable built-up land and almost nobody lived there (GHSL 2025, 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. The GHSL 2025 epoch is a projection made from 2020 and earlier data.

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

Before and after, from space

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

Before · 2 Aug 2023
After · 22 Aug 2023

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 17 August 2023 the air beside the fire reached 18 µg/m³ of PM2.5, but no daily average passed the WHO guideline (15).

PM2.5 peak18 µg/m³
Days over the guideline0 days
PM1026 µg/m³
Optical depth0.26
89101112131415161718
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 · 108Every 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 Botswana ›

Frequently asked questions

How long did the Ghanzi fire last?
According to the heat detections seen by satellite inside the perimeter, it burned from 9 August 2023 to 15 August 2023 (7 days). The perimeter dates it from 10 August 2023 to 15 August 2023.
How much area did it burn?
The perimeter GWIS (Copernicus) rebuilt from heat detections is 2,368 hectares (23.7 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Ghanzi (2,392 ha, 0.0 %).
Where does this data come from?
From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Botswana (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 · 1 Changes in area, dates, name, official record or merged pages, compared every night since 24 October 2026.
  1. Start date: 10 August 2023 → 9 August 2023.

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 10 August 2023 to 15 August 2023. 108 Suomi-NPP VIIRS detections on those dates.
  • We have not matched this page with any official record.
  • Built-up area and population come from the JRC Global Human Settlement Layer (epoch 2025, 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 (Public Domain). 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.