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Corumbá fire, 4 November 2023 Miranda, Aquidauana, Corumbá

Out · last detection 22 Nov 2023, 17:51 UTC

The fire started on 4 November 2023 in Corumbá, Brazil, and satellites saw it burning for 20 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 124,691 hectares from heat detections, spread across 3 municipalities.

This page is probably a fire complex, not a single fire. GWIS merges into one perimeter the fires that touch over weeks, which in large burning seasons can join dozens of separate fires. The total area is reliable; the origin and dates refer to the whole complex.

It is the 4th largest in Mato Grosso do Sul since 2016 (of 506 with a page). Number 2 in Brazil in 2023, of 431.

Compare with…
Burnt area
124,691ha
GWIS perimeter (Copernicus)
Duration
20days
4 Nov 2023 – 23 Nov 2023
Municipalities hit
3
municipalities
Started on
4 Nov
2023
Heat detections
5,505
in a single hotspot: 674 MW
Danger at start
14
Moderate · FWI index
Average daily power
7.1GW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 4 Nov23 Nov
22 Nov 2023

How it evolved, day by day

4 Nov 2023 · 11 MW · 3 5 Nov 2023 · 23 MW · 4 6 Nov 2023 · 81 MW · 6 7 Nov 2023 · 187 MW · 7 8 Nov 2023 · 875 MW · 33 9 Nov 2023 · 6 MW · 1 10 Nov 2023 · 600 MW · 19 11 Nov 2023 · 962 MW · 59 12 Nov 2023 · 29,684 MW · 486 13 Nov 2023 · 32,643 MW · 1231 14 Nov 2023 · 11,585 MW · 592 15 Nov 2023 · 13,276 MW · 856 16 Nov 2023 · 11,802 MW · 553 17 Nov 2023 · 5,860 MW · 476 18 Nov 2023 · 15,459 MW · 883 19 Nov 2023 · 452 MW · 101 21 Nov 2023 · 264 MW · 26 22 Nov 2023 · 3,251 MW · 169
4 Nov 7 Nov 10 Nov 13 Nov 16 Nov 19 Nov

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

The weather it burned in

41°high
56km/h · peak gust
19%lowest humidity

It had gone 2 days without rain (1 mm or more) when it started. Rain came after the fire: 5.7 mm on 24 Nov.

This area had burned before

67% of the perimeter overlaps earlier fires recorded since 2016: 5,056 ha in 2017, 44,058 ha in 2019, 21,105 ha in 2020, 32,843 ha in 2021, 9,909 ha in 2022. Part of it burned more than once, so the yearly figures add up to more than the 83,193 ha that had burned before.

How big is it?

10 km
It burned the equivalent of 79% of the area of London (1,247 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. Miranda 25,536 inhabitants
    66,328 ha reached on 13 Nov
    12 %
  2. Aquidauana 46,803 inhabitants
    51,216 ha reached on 11 Nov
    3.0 %
  3. Corumbá 96,268 inhabitants where it started
    7,736 ha reached on 4 Nov
    0.1 %

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 area0.58 ha
Residents< 20

Inside the perimeter there were about 0.58 hectares of 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

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)
4 Nov 30.3 °C 21 % 30 km/h 0.0 mm Moderate 14
5 Nov 35.1 °C 19 % 26 km/h 0.0 mm Moderate 19
6 Nov 39.3 °C 19 % 23 km/h 0.0 mm High 22
7 Nov 41.1 °C 20 % 27 km/h 0.0 mm High 22
8 Nov 40.9 °C 27 % 44 km/h 0.0 mm High 30
9 Nov 37.7 °C 39 % 42 km/h 0.7 mm Moderate 19
10 Nov 39.9 °C 29 % 44 km/h 0.0 mm High 27
11 Nov 40.9 °C 24 % 56 km/h 0.0 mm High 38
12 Nov 40.6 °C 28 % 54 km/h 0.1 mm Very high 38
13 Nov 40.7 °C 26 % 46 km/h 0.0 mm High 35
14 Nov 40.1 °C 26 % 45 km/h 0.0 mm High 36
15 Nov 40.3 °C 26 % 49 km/h 0.0 mm Very high 39
16 Nov 41.2 °C 23 % 50 km/h 0.0 mm Very high 41
17 Nov 41.3 °C 20 % 56 km/h 0.0 mm Very high 48
18 Nov 41.4 °C 21 % 53 km/h 0.0 mm Very high 47
19 Nov 39.1 °C 34 % 47 km/h 16.0 mm Low 11
20 Nov 32.3 °C 54 % 26 km/h 6.9 mm Very low 2
21 Nov 35.0 °C 44 % 32 km/h 0.6 mm Low 10
22 Nov 37.4 °C 37 % 45 km/h 1.0 mm Moderate 15
23 Nov 34.3 °C 53 % 37 km/h 8.8 mm Very low 2
24 Nov after 28.5 °C 72 % 20 km/h 5.7 mm Very low 0

Before and after, from space

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

Before · 28 Oct 2023
After · 30 Nov 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 19 November 2023 the air beside the fire reached 464 µg/m³ of PM2.5. That day averaged 158: 11 times the WHO daily guideline (15).

PM2.5 peak464 µg/m³
Days over the guideline17 days
PM10663 µg/m³
Optical depth4.28
234567891011121314151617181920212223242526
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 · 5,505Every 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 Brazil ›

Frequently asked questions

How long did the Corumbá fire last?
GWIS (Copernicus) dates it between 4 November 2023 and 23 November 2023: 20 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 124,691 hectares (1,246.9 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire entered 3 municipalities: Miranda (66,328 ha, 12 %); Aquidauana (51,216 ha, 3.0 %); Corumbá (7,736 ha, 0.1 %).
What was the weather like?
During the fire the temperature reached 41.4 °C, humidity dropped to 19 % and gusts hit 56 km/h. The fire danger index (FWI) reached 48, class Very high.
Where does this data come from?
From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Brazil (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.

Emergency number: 193 · Emergency number and official warnings ›

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.

Report an error
What do you think is wrong?

We will only use your email to reply about this report. Privacy. This is not an emergency service: if there is a fire now, call 193.

How we know this
  • Perimeter: GWIS (Copernicus), rebuilt from heat detections rather than mapped on imagery; 2 polygons grouped in this page.
  • Dates from the perimeter: the VIIRS detections inside it did not change them. 5,505 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.