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Lodja fire, 5 July 2023 Lodja

Out · last detection 29 Jul 2023, 12:26 UTC

The fire started on 5 July 2023 in Lodja, Democratic Republic of the Congo, and satellites saw it burning for 24 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 21,982 hectares from heat detections, spread across a single municipality.

It is the 36th largest in Sankuru since 2016 (of 187 with a page). Number 6 in Democratic Republic of the Congo in 2023, of 76.

Compare with…
Burnt area
21,982ha
GWIS perimeter (Copernicus)
Duration
24days
5 Jul 2023 – 28 Jul 2023
Municipalities hit
1
territories
Started on
5 Jul
2023
Heat detections
1,469
in a single hotspot: 169 MW
Danger at start
16
Moderate · FWI index
Average daily power
933MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 5 Jul28 Jul
29 Jul 2023

How it evolved, day by day

5 Jul 2023 · 12 MW · 2 6 Jul 2023 · 3 MW · 1 7 Jul 2023 · 281 MW · 36 8 Jul 2023 · 738 MW · 94 9 Jul 2023 · 378 MW · 38 13 Jul 2023 · 327 MW · 35 14 Jul 2023 · 2,547 MW · 245 15 Jul 2023 · 4,316 MW · 338 16 Jul 2023 · 2,029 MW · 114 17 Jul 2023 · 3,978 MW · 229 18 Jul 2023 · 414 MW · 59 19 Jul 2023 · 645 MW · 48 20 Jul 2023 · 624 MW · 68 21 Jul 2023 · 156 MW · 23 22 Jul 2023 · 185 MW · 26 24 Jul 2023 · 16 MW · 1 25 Jul 2023 · 944 MW · 92 28 Jul 2023 · 130 MW · 19 29 Jul 2023 · 3 MW · 1
5 Jul 8 Jul 14 Jul 15 Jul 17 Jul 20 Jul 24 Jul 29 Jul

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

The weather it burned in

36°high
35km/h · peak gust
19%lowest humidity

It had gone 4 days without rain (1 mm or more) when it started.

This area had burned before

94% of the perimeter overlaps earlier fires recorded since 2016: 15,629 ha in 2016, 1,849 ha in 2017, 12,604 ha in 2018, 8,159 ha in 2019, 12,064 ha in 2020, 6,512 ha in 2021, 10,745 ha in 2022. Part of it burned more than once, so the yearly figures add up to more than the 20,625 ha that had burned before.

How big is it?

10 km
It burned the equivalent of 14% of the area of London (220 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. Lodja where it started
    22,138 ha reached on 5 Jul
    1.8 %

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 area16 ha
Residents≈ 400

Inside the perimeter there were about 16 hectares of built-up land and about 400 residents (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

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)

Day High Min. humidity Peak gust Rain Danger (FWI)
5 Jul 31.6 °C 35 % 19 km/h 0.0 mm Moderate 16
6 Jul 31.7 °C 35 % 28 km/h 0.0 mm Moderate 17
7 Jul 32.9 °C 27 % 35 km/h 0.0 mm Moderate 20
8 Jul 33.4 °C 25 % 26 km/h 0.0 mm Moderate 20
9 Jul 31.5 °C 39 % 18 km/h 0.0 mm Moderate 19
10 Jul 30.8 °C 47 % 24 km/h 0.0 mm Moderate 17
11 Jul 33.3 °C 41 % 28 km/h 0.5 mm Moderate 16
12 Jul 32.9 °C 30 % 30 km/h 0.0 mm Moderate 21
13 Jul 33.2 °C 32 % 28 km/h 0.1 mm High 22
14 Jul 34.5 °C 25 % 34 km/h 0.0 mm High 26
15 Jul 34.8 °C 24 % 26 km/h 0.0 mm High 25
16 Jul 35.0 °C 26 % 29 km/h 0.0 mm High 27
17 Jul 35.7 °C 22 % 35 km/h 0.0 mm High 30
18 Jul 35.9 °C 19 % 34 km/h 0.0 mm High 34
19 Jul 34.1 °C 21 % 19 km/h 0.0 mm High 32
20 Jul 33.8 °C 31 % 21 km/h 0.0 mm High 31
21 Jul 33.6 °C 37 % 24 km/h 0.0 mm High 27
22 Jul 35.3 °C 21 % 34 km/h 0.0 mm High 33
23 Jul 35.2 °C 20 % 26 km/h 0.0 mm High 32
24 Jul 34.2 °C 24 % 22 km/h 0.0 mm High 34
25 Jul 33.8 °C 32 % 24 km/h 0.0 mm High 30
26 Jul 33.5 °C 34 % 25 km/h 0.2 mm High 30
27 Jul 34.1 °C 24 % 23 km/h 0.0 mm High 31
28 Jul 35.6 °C 20 % 27 km/h 0.0 mm High 34
29 Jul after 33.8 °C 36 % 31 km/h 0.0 mm High 33
30 Jul after 35.2 °C 28 % 22 km/h 0.0 mm High 30
31 Jul after 34.2 °C 34 % 26 km/h 0.0 mm High 32
1 Aug after 35.3 °C 27 % 22 km/h 0.0 mm High 31
2 Aug after 33.4 °C 30 % 23 km/h 0.0 mm High 32
3 Aug after 33.8 °C 33 % 29 km/h 0.2 mm High 32
4 Aug after 35.5 °C 21 % 29 km/h 0.0 mm High 36
5 Aug after 35.5 °C 21 % 31 km/h 0.0 mm High 37
6 Aug after 36.1 °C 20 % 27 km/h 0.0 mm High 36
7 Aug after 33.3 °C 32 % 27 km/h 0.0 mm High 37

Before and after, from space

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

Before · 28 Jun 2023
After · 4 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 15 July 2023 the air beside the fire reached 367 µg/m³ of PM2.5. That day averaged 181: 12 times the WHO daily guideline (15).

PM2.5 peak367 µg/m³
Days over the guideline15 days
PM10523 µg/m³
Optical depth2.18
101112131415161718192021222324
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 · 1,469Every 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 Democratic Republic of the Congo ›

Frequently asked questions

How long did the Lodja fire last?
According to the heat detections seen by satellite inside the perimeter, it burned from 5 July 2023 to 28 July 2023 (24 days). The perimeter dates it from 12 July 2023 to 21 July 2023.
How much area did it burn?
The perimeter GWIS (Copernicus) rebuilt from heat detections is 21,982 hectares (219.8 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Lodja (22,138 ha, 1.8 %).
What was the weather like?
During the fire the temperature reached 35.9 °C, humidity dropped to 19 % and gusts hit 35 km/h. The fire danger index (FWI) reached 34, class High.
Where does this data come from?
From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Democratic Republic of the Congo (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 · 2 Changes in area, dates, name, official record or merged pages, compared every night since 24 October 2026.
  1. Last day with fire: 21 July 2023 → 28 July 2023.
  2. Start date: 12 July 2023 → 5 July 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 12 July 2023 to 21 July 2023. 1,469 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 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 (Creative Commons Attribution 3.0 Intergovernmental Organisations (CC BY 3.0 IGO)). 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.