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Ribaué fire, 27 September 2022 Ribaué, Murrupula

Out · last detection 8 Oct 2022, 10:54 UTC

The fire started on 27 September 2022 in Ribaué, Mozambique, and satellites saw it burning for 11 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 14,336 hectares from heat detections, spread across 2 municipalities.

It is the 26th largest in Nampula since 2016 (of 392 with a page). Number 21 in Mozambique in 2022, of 206.

Compare with…
Burnt area
14,336ha
GWIS perimeter (Copernicus)
Duration
11days
27 Sept 2022 – 7 Oct 2022
Municipalities hit
2
districts
Started on
27 Sept
2022
Heat detections
886
in a single hotspot: 87 MW
Danger at start
31
High · FWI index
Average daily power
611MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 27 Sept7 Oct
8 Oct 2022

How it evolved, day by day

27 Sept 2022 · 117 MW · 22 28 Sept 2022 · 28 MW · 4 29 Sept 2022 · 61 MW · 11 30 Sept 2022 · 466 MW · 71 1 Oct 2022 · 1,346 MW · 147 2 Oct 2022 · 858 MW · 98 3 Oct 2022 · 502 MW · 42 4 Oct 2022 · 756 MW · 72 5 Oct 2022 · 2,177 MW · 200 6 Oct 2022 · 533 MW · 57 7 Oct 2022 · 279 MW · 26 8 Oct 2022 · 210 MW · 21
27 Sept 29 Sept 1 Oct 3 Oct 5 Oct 7 Oct

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

The weather it burned in

33°high
42km/h · peak gust
20%lowest humidity

It had gone 11 days without rain (1 mm or more) when it started.

This area had burned before

98% of the perimeter overlaps earlier fires recorded since 2016: 7,394 ha in 2016, 10,029 ha in 2017, 7,522 ha in 2018, 2,731 ha in 2019, 4,833 ha in 2020, 6,311 ha in 2021. Part of it burned more than once, so the yearly figures add up to more than the 14,055 ha that had burned before.

How big is it?

10 km
It burned the equivalent of 9.1% of the area of London (143 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. Ribaué where it started
    14,038 ha reached on 26 Sept
    2.2 %
  2. 399 ha reached on 27 Sept
    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 2020
Built-up area4.7 ha
Residents≈ 650

Inside the perimeter there were about 4.7 hectares of built-up land and about 650 residents (GHSL 2020, 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.

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)
26 Sept 31.0 °C 32 % 42 km/h 0.0 mm High 31
27 Sept 31.6 °C 34 % 40 km/h 0.0 mm High 30
28 Sept 29.6 °C 35 % 35 km/h 0.0 mm High 29
29 Sept 29.5 °C 37 % 34 km/h 0.0 mm High 29
30 Sept 30.8 °C 29 % 28 km/h 0.0 mm High 30
1 Oct 31.8 °C 23 % 28 km/h 0.0 mm High 34
2 Oct 32.4 °C 33 % 32 km/h 0.0 mm High 33
3 Oct 32.2 °C 32 % 30 km/h 0.0 mm High 33
4 Oct 33.1 °C 20 % 36 km/h 0.0 mm High 38
5 Oct 32.4 °C 26 % 40 km/h 0.0 mm Very high 40
6 Oct 33.3 °C 23 % 32 km/h 0.0 mm Very high 38
7 Oct 32.7 °C 25 % 37 km/h 0.0 mm Very high 40
8 Oct after 32.6 °C 27 % 40 km/h 0.0 mm Very high 41
9 Oct after 32.0 °C 28 % 31 km/h 0.2 mm High 37
10 Oct after 31.5 °C 31 % 38 km/h 0.0 mm High 38
11 Oct after 31.3 °C 29 % 37 km/h 0.0 mm Very high 39
12 Oct after 31.5 °C 29 % 33 km/h 0.0 mm High 36
13 Oct after 32.3 °C 27 % 38 km/h 0.0 mm Very high 38
14 Oct after 33.0 °C 23 % 34 km/h 0.0 mm High 37
15 Oct after 31.8 °C 27 % 34 km/h 0.0 mm Very high 38
16 Oct after 31.8 °C 24 % 32 km/h 0.0 mm Very high 39
17 Oct after 31.3 °C 29 % 33 km/h 0.0 mm High 37
18 Oct after 29.8 °C 39 % 28 km/h 0.1 mm High 31
19 Oct after 31.1 °C 35 % 29 km/h 0.1 mm High 33
20 Oct after 33.1 °C 23 % 32 km/h 0.0 mm High 36
21 Oct after 33.1 °C 26 % 42 km/h 0.0 mm Very high 41
22 Oct after 32.7 °C 28 % 38 km/h 0.0 mm Very high 38
23 Oct after 32.9 °C 23 % 33 km/h 0.0 mm High 36
24 Oct after 33.1 °C 29 % 32 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 · 20 Sept 2022
After · 14 Oct 2022

If the day is cloudy, change the date: each satellite passes once a day. In false colour the burnt ground looks brown or red.

Detections table · 886Every 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 Mozambique ›

Frequently asked questions

How long did the Ribaué fire last?
GWIS (Copernicus) dates it between 27 September 2022 and 7 October 2022: 11 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 14,336 hectares (143.4 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire entered 2 municipalities: Ribaué (14,038 ha, 2.2 %); Murrupula (399 ha, 0.1 %).
What was the weather like?
During the fire the temperature reached 33.3 °C, humidity dropped to 20 % and gusts hit 42 km/h. The fire danger index (FWI) reached 41, class Very high.
Where does this data come from?
From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Mozambique (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 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.

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How we know this
  • Perimeter: GWIS (Copernicus), rebuilt from heat detections rather than mapped on imagery.
  • Dates from the perimeter: the VIIRS detections inside it did not change them. 886 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 2020, 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.