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Muanza fire, 14 October 2018 Muanza

Out · last detection 20 Oct 2018, 12:01 UTC

The fire started on 14 October 2018 in Muanza, Mozambique, and satellites saw it burning for 7 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 6,541 hectares from heat detections, spread across a single municipality.

It is the 56th largest in Sofala since 2016 (of 214 with a page). Number 45 in Mozambique in 2018, of 220.

Compare with…
Burnt area
6,541ha
GWIS perimeter (Copernicus)
Duration
7days
14 Oct 2018 – 20 Oct 2018
Municipalities hit
1
districts
Started on
14 Oct
2018
Heat detections
166
in a single hotspot: 222 MW
Danger at start
24
High · FWI index
Average daily power
490MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 14 Oct20 Oct
20 Oct 2018

How it evolved, day by day

14 Oct 2018 · 28 MW · 2 15 Oct 2018 · 332 MW · 21 16 Oct 2018 · 1,485 MW · 74 17 Oct 2018 · 592 MW · 54 20 Oct 2018 · 11 MW · 2
14 Oct 15 Oct 16 Oct 17 Oct 20 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

34°high
50km/h · peak gust
46%lowest humidity

It had gone one day without rain (1 mm or more) when it started. Rain came after the fire: 4.6 mm on 21 Oct.

This area had burned before

79% of the perimeter overlaps earlier fires recorded since 2016: 4,361 ha in 2016, 3,764 ha in 2017. Part of it burned more than once, so the yearly figures add up to more than the 5,146 ha that had burned before.

How big is it?

10 km
It burned the equivalent of 4.1% of the area of London (65 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. Muanza where it started
    6,567 ha reached on 8 Oct
    0.9 %

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 area2.1 ha
Residents≈ 800

Inside the perimeter there were about 2.1 hectares of built-up land and about 800 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)
14 Oct 31.3 °C 47 % 34 km/h 0.4 mm High 24
15 Oct 31.6 °C 50 % 30 km/h 0.0 mm High 23
16 Oct 32.7 °C 51 % 36 km/h 0.8 mm Moderate 20
17 Oct 34.1 °C 46 % 35 km/h 0.5 mm High 24
18 Oct 32.8 °C 50 % 50 km/h 2.0 mm Moderate 17
19 Oct 26.0 °C 70 % 36 km/h 2.6 mm Low 5
20 Oct 29.1 °C 62 % 47 km/h 1.4 mm Low 9
21 Oct after 22.7 °C 66 % 52 km/h 4.6 mm Very low 4

Before and after, from space

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

Before · 7 Oct 2018
After · 27 Oct 2018

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 · 166Every 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 Muanza fire last?
GWIS (Copernicus) dates it between 14 October 2018 and 20 October 2018: 7 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 6,541 hectares (65.4 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Muanza (6,567 ha, 0.9 %).
What was the weather like?
During the fire the temperature reached 34.1 °C, humidity dropped to 46 % and gusts hit 50 km/h. The fire danger index (FWI) reached 24, class 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. 166 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.