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Manja fire, December 2025 Manja

Out · last detection 11 Dec 2025, 10:06 UTC

The fire started on 6 December 2025 in Manja, Madagascar, and satellites saw it burning for 7 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 2,199 hectares from heat detections, spread across a single municipality.

It is the 72th largest in Menabe since 2016 (of 98 with a page). Number 76 in Madagascar in 2025, of 95.

Burnt area
2,199ha
GWIS perimeter (Copernicus)
Duration
7days
6 Dec 2025 – 12 Dec 2025
Municipalities hit
1
districts
Started on
6 Dec
2025
Heat detections
51
in a single hotspot: 44 MW
Energy released
907MW
sum of detected power

Where it burned

11 Dec 2025
HOTSPOTS BY DAY 6 Dec12 Dec

How it evolved, day by day

6891011

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

This area had burned before

73% of the perimeter overlaps earlier fires recorded since 2016: 677 ha in 2016, 1,576 ha in 2024. Part of it burned more than once, so the yearly figures add up to more than the 1,613 ha that had burned before.

What happened to each town

  1. Manja where it started
    2,205 ha reached on 3 Dec
    0.2 %

Burnt area inside each municipality, from crossing the GWIS perimeter with administrative boundaries. The distance is from the town centre to the nearest fire: staying a kilometre away does not mean it reached the houses.

Before and after, from space

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

Before · 29 Nov 2025
After · 19 Dec 2025

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 4 December 2025 the air beside the fire reached 10 µg/m³ of PM2.5, but no daily average passed the WHO guideline (15).

PM2.5 peak10 µg/m³
Days over the guideline0 days
PM1012 µg/m³
Optical depth0.22
456789101112131415
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 · 51Every 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 Madagascar ›

Frequently asked questions

How long did the Manja fire last?
GWIS (Copernicus) dates it between 6 December 2025 and 12 December 2025: 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 2,199 hectares (22.0 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Manja (2,205 ha, 0.2 %).
Where does this data come from?
From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Madagascar (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

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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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.