Skip to content
worldfires
BR · Brazil · →

Amajari fire, 10 February 2024 Amajari

Out · last detection 25 Feb 2024, 05:33 UTC

The fire started on 10 February 2024 in Amajari, Brazil, and satellites saw it burning for 16 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 4,498 hectares from heat detections, spread across a single municipality.

It is the 63th largest in Roraima since 2016 (of 122 with a page). Number 789 in Brazil in 2024, of 1301.

Compare with…
Burnt area
4,498ha
GWIS perimeter (Copernicus)
Duration
16days
10 Feb 2024 – 25 Feb 2024
Municipalities hit
1
municipalities
Started on
10 Feb
2024
Heat detections
174
in a single hotspot: 126 MW
Danger at start
30
High · FWI index
Average daily power
157MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 10 Feb25 Feb
25 Feb 2024

How it evolved, day by day

11 Feb 2024 · 69 MW · 6 12 Feb 2024 · 73 MW · 10 15 Feb 2024 · 73 MW · 7 16 Feb 2024 · 940 MW · 44 17 Feb 2024 · 415 MW · 48 18 Feb 2024 · 140 MW · 25 19 Feb 2024 · 107 MW · 14 20 Feb 2024 · 43 MW · 13 22 Feb 2024 · 5 MW · 1 23 Feb 2024 · 9 MW · 1 24 Feb 2024 · 4 MW · 2 25 Feb 2024 · 4 MW · 3
11 Feb 15 Feb 16 Feb 17 Feb 19 Feb 22 Feb 24 Feb

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

The weather it burned in

37°high
42km/h · peak gust
19%lowest humidity

It had gone 3 days without rain (1 mm or more) when it started. Rain came after the fire: 8.8 mm on 27 Feb.

This area had burned before

41% of the perimeter overlaps earlier fires recorded since 2016: 1,854 ha in 2019.

How big is it?

10 km
It burned the equivalent of 2.8% of the area of London (45 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. Amajari 13,927 inhabitants where it started
    4,528 ha reached on 11 Feb
    0.2 %

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 area0.24 ha
Residents≈ 30

Inside the perimeter there were about 0.24 hectares of built-up land and about 30 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)
11 Feb 36.1 °C 26 % 42 km/h 0.0 mm High 30
12 Feb 35.6 °C 32 % 34 km/h 0.0 mm High 28
13 Feb 33.4 °C 42 % 40 km/h 0.0 mm High 26
14 Feb 34.3 °C 41 % 41 km/h 0.2 mm High 28
15 Feb 35.9 °C 31 % 36 km/h 0.0 mm High 27
16 Feb 36.6 °C 23 % 40 km/h 0.0 mm High 35
17 Feb 35.6 °C 31 % 41 km/h 0.0 mm High 35
18 Feb 36.7 °C 29 % 33 km/h 0.0 mm High 33
19 Feb 36.8 °C 19 % 35 km/h 0.0 mm High 36
20 Feb 36.3 °C 26 % 29 km/h 0.0 mm High 36
21 Feb 36.4 °C 25 % 31 km/h 0.0 mm High 37
22 Feb 36.3 °C 26 % 35 km/h 0.0 mm High 37
23 Feb 36.3 °C 26 % 33 km/h 0.0 mm Very high 40
24 Feb 36.0 °C 36 % 41 km/h 0.0 mm High 34
25 Feb 36.2 °C 34 % 36 km/h 0.0 mm High 32
26 Feb after 33.4 °C 44 % 22 km/h 0.5 mm High 25
27 Feb after 28.7 °C 64 % 22 km/h 8.8 mm Very low 1

Before and after, from space

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

Before · 3 Feb 2024
After · 3 Mar 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 23 February 2024 the air beside the fire reached 66 µg/m³ of PM2.5. That day averaged 32: 2.2 times the WHO daily guideline (15).

PM2.5 peak66 µg/m³
Days over the guideline9 days
PM1094 µg/m³
Optical depth1.14
1314151617181920212223
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 · 174Every 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 Amajari fire last?
According to the heat detections seen by satellite inside the perimeter, it burned from 10 February 2024 to 25 February 2024 (16 days). The perimeter dates it from 15 February 2024 to 20 February 2024.
How much area did it burn?
The perimeter GWIS (Copernicus) rebuilt from heat detections is 4,498 hectares (45.0 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Amajari (4,528 ha, 0.2 %).
What was the weather like?
During the fire the temperature reached 36.8 °C, humidity dropped to 19 % and gusts hit 42 km/h. The fire danger index (FWI) reached 40, 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 · 2 Changes in area, dates, name, official record or merged pages, compared every night since 24 October 2026.
  1. Last day with fire: 20 February 2024 → 25 February 2024.
  2. Start date: 15 February 2024 → 10 February 2024.

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.
  • Dates adjusted with the VIIRS detections inside the perimeter, which said 15 February 2024 to 20 February 2024. 174 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.