Burned area
satellite only4,409ha
Perimeter published by GWIS (Copernicus).
- Source
- GWIS (Copernicus)
- Date
- 27 Sept 2024 – 16 Oct 2024
+− cross-check
No official record is matched to this page to compare it with.
MG · Madagascar · –
Analalava fire, 27 September 2024 Analalava
Out · last detection 16 Oct 2024, 09:56 UTC
The fire started on 27 September 2024 in Analalava, Madagascar, and satellites saw it burning for 20 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 4,409 hectares from heat detections, spread across a single municipality.
It is the 14th largest in Sofia since 2016 (of 116 with a page). Number 11 in Madagascar in 2024, of 54.
Use this data
Compare with…
Use this data
Fire page data · version 2026-11-05matches the official recordwith caveatssatellite onlymodel
When copying, the sentence is
Tick the figures you want: they make up the lede and the CSV.
Duration by satellite
satellite only20days
27 Sept 2024 to 16 Oct 2024: first and last day with fire on the page.
- Source
- GWIS (Copernicus) · NASA FIRMS · VIIRS
- Date
- last detection: 16 Oct 2024, 09:56 UTC
+− cross-check
Satellites pass a few times a day and cloud or smoke can hide the fire: a lack of detections is not an official extinction. Each country’s emergency service declares a fire contained or out.
Start
satellite only27 Sept 2024
First day with fire seen by the satellites or the perimeter.
- Source
- GWIS (Copernicus) · NASA FIRMS · VIIRS
- Date
- 27 Sept 2024
+− cross-check
No official record is matched to this page, so the alert time and the cause are not known here.
Hotspots
satellite only182
VIIRS detections at 375 m. Most intense hotspot: 92 MW.
- Source
- NASA FIRMS · VIIRS (Suomi NPP + NOAA-20)
- Date
- 27 Sept 2024 – 16 Oct 2024
+− cross-check
There is no official record to compare with. Each hotspot is a pixel detected in one satellite pass, not a separate fire.
The worst day
satellite only364MW
Total radiative power on 14 October 2024; hotspots that day: 13.
- Source
- NASA FIRMS · VIIRS (FRP)
- Date
- 14 Oct 2024
+− cross-check
Fire radiative power (FRP) measures the energy the fire gives off when the satellite passes. Added up by day, it compares intensity, not area.
Danger at the start
model31.7FWI · high
Fire Weather Index (Canadian system) computed by WorldFires for the day the fire started. Consecutive days without rain before: 1.
- Source
- WorldFires calculation (Canadian FWI system)
- Date
- 27 Sept 2024, local noon
- Model
- ERA5 0,25° (ECMWF · Copernicus C3S) · Open-Meteo.com
+− cross-check
This is an index computed from weather model data, not a measurement of the fire nor an official warning. Danger warnings are issued by each country’s authority. Emergency number and official warnings
Weather during the fire
model35.5°C · 34% RH
High of 35.5 °C and minimum humidity of 34% on 11 October 2024; gusts of 43 km/h on 9 October 2024.
- Source
- weather model at the fire’s grid cell
- Date
- 27 Sept 2024 – 16 Oct 2024
- Model
- ERA5 0,25° (ECMWF · Copernicus C3S) · Open-Meteo.com
+− cross-check
These are model values for a cell of about 25 km, not from a weather station: they may differ from what was measured on the ground.
Living inside
model≈ 80people
Estimated residents inside the perimeter and 0.36 ha of built-up area (100 m grid, epoch 2025).
- Source
- GHSL R2023A · JRC
- Date
- calculated on 24 October 2026
+− cross-check
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.
This page’s change log has been kept since 24 October 2026: every night what it publishes is compared and the difference is logged. Anything earlier is reconstructed from each source’s date and marked as reconstructed.
Show
-
logStart date: 2 October 2024 → 27 September 2024.
-
· reconstructed weatherWeather and FWI computed from the ERA5 reanalysis
-
· reconstructed GHSLPopulation and built-up area computed
What was saved on 5 November 2026
Every night a snapshot of what the page shows is saved. If anything changes, it appears in the list as a log entry.
- Area
- 4,409 ha
- Dates
- 27 Sept 2024 – 16 Oct 2024
- Name
- Analalava
- Official record
- —
Versioned permanent link
https://worldfires.org/en/fire/analalava-2024-10?v=2026-11-05A version keeps the area, dates, name and official record; the area as it was logged (changes under 2% are not logged). The map, hotspots and weather always show today’s data.
Citation
A lede of about 60 words figures only, no adjectives
CSV for this fire analalava-2024-10.csv · daily, no individual hotspots
| fecha | focos_viirs | frp_mw | tmax_c | tmin_c | hr_min_pct | viento_max_kmh | racha_max_kmh | precip_mm | fwi | clase_fwi | dentro_del_incendio |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2024-09-27 | 2 | 6 | 33 | 20 | 31 | 16.6 | 41.8 | 0.6 | 31.7 | alto | 1 |
| 2024-09-28 | 2 | 71 | 31.5 | 20.5 | 49 | 13.4 | 38.5 | 0.5 | 20.8 | moderado | 1 |
| 2024-09-29 | 3 | 19 | 32.7 | 22.5 | 44 | 14.6 | 39.6 | 2.8 | 12.2 | moderado | 1 |
| 2024-09-30 | 0 | 0 | 32.6 | 20.4 | 50 | 12 | 36 | 3.7 | 21.3 | moderado | 1 |
| 2024-10-01 | 0 | 0 | 32.6 | 21.5 | 49 | 14.9 | 41.8 | 1 | 9.9 | bajo | 1 |
| 2024-10-02 | 7 | 37 | 33.4 | 20.2 | 43 | 15.7 | 42.8 | 1.3 | 21.7 | alto | 1 |
| 2024-10-03 | 12 | 54 | 32.4 | 20.1 | 43 | 15.4 | 41.4 | 1.3 | 16.1 | moderado | 1 |
| 2024-10-04 | 19 | 225 | 34 | 19.1 | 36 | 8.7 | 40.7 | 0 | 20.6 | moderado | 1 |
| 2024-10-05 | 23 | 82 | 32.5 | 20.5 | 40 | 11.2 | 37.8 | 0.5 | 26.8 | alto | 1 |
| 2024-10-06 | 14 | 220 | 32.1 | 20 | 40 | 15.5 | 41.8 | 0 | 30.4 | alto | 1 |
| 2024-10-07 | 8 | 47 | 31.4 | 21.2 | 49 | 14.1 | 37.8 | 0.5 | 29.3 | alto | 1 |
| 2024-10-08 | 4 | 28 | 30.8 | 22.6 | 50 | 13.4 | 39.6 | 0.4 | 29.5 | alto | 1 |
| 2024-10-09 | 0 | 0 | 32.4 | 21.4 | 46 | 15 | 43.2 | 3.8 | 10.3 | bajo | 1 |
| 2024-10-10 | 5 | 25 | 33.9 | 21.2 | 38 | 14.5 | 40.3 | 0 | 20.9 | moderado | 1 |
| 2024-10-11 | 12 | 130 | 35.5 | 22.3 | 34 | 14.7 | 40 | 0.1 | 30.2 | alto | 1 |
| 2024-10-12 | 22 | 339 | 34.9 | 21.3 | 33 | 13.2 | 39.2 | 0 | 32.9 | alto | 1 |
| 2024-10-13 | 23 | 302 | 34 | 21.2 | 34 | 15 | 42.1 | 0.9 | 31.5 | alto | 1 |
| 2024-10-14 | 13 | 364 | 31.7 | 23 | 43 | 13.1 | 41 | 0.8 | 23.9 | alto | 1 |
| 2024-10-15 | 12 | 82 | 31.7 | 22.6 | 51 | 13.9 | 38.9 | 1.2 | 17.8 | moderado | 1 |
| 2024-10-16 | 1 | 4 | 32.9 | 22.3 | 45 | 14.2 | 42.1 | 0 | 27.2 | alto | 1 |
| 2024-10-17 | 0 | 0 | 32.5 | 23.2 | 50 | 10.9 | 35.3 | 5.4 | 27 | alto | 0 |
It is generated in your browser from this page’s data: one file per fire, aggregated by day and without individual hotspots.
Live widget for your story
It updates itself while the fire is still active and links to this page. Free, with the attribution shown at the bottom.
Sources for this page: GWIS (Copernicus), NASA FIRMS (VIIRS), ERA5 (ECMWF/Copernicus C3S) · Open-Meteo.com (CC BY 4.0), GHSL (JRC). Open-Meteo.com · How we build fire pages: methodology
- Burnt area
- 4,409ha
- GWIS perimeter (Copernicus)
- Duration
- 20days
- 27 Sept 2024 – 16 Oct 2024
- Municipalities hit
- 1
- districts
- Started on
- 27 Sept
- 2024
- Heat detections
- 182
- in a single hotspot: 92 MW
- Danger at start
- 32
- High · FWI index
- Average daily power
- 120MW
- detected power per day, on average
Where it burned
HOTSPOTS BY DAY
27 Sept16 Oct
16 Oct 2024
How it evolved, day by day
27 Sept
3 Oct
7 Oct
14 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
36°high
43km/h · peak gust
31%lowest humidity
It had gone one day without rain (1 mm or more) when it started. Rain came after the fire: 5.4 mm on 17 Oct.
This area had burned before
37% of the perimeter overlaps earlier fires recorded since 2016: 627 ha in 2016, 1,010 ha in 2020.
How big is it?
London boundary: geoBoundaries · Office for National Statistics (Open Government Licence v3.0).
Paris boundary: geoBoundaries · Institut national de l'information géographique et forestière (IGN-F) (Etalab Open License 2.0).
Madrid boundary: geoBoundaries · Open Data ESRI, IGN Central Registry of Cartography Area (CC BY 4.0).
Berlin boundary: geoBoundaries · Federal Agency for Cartography and Geodesy (dl-de/by-2-0).
This compares size, not location: both shapes are at the same scale, north up, centred on each other.
What happened to each town
-
Analalava where it started4,427 ha reached on 27 Sept0.5 %
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 2025Built-up area0.36 ha
Residents≈ 80
Inside the perimeter there were about 0.36 hectares of built-up land and about 80 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) |
|---|---|---|---|---|---|
| 27 Sept | 33.0 °C | 31 % | 42 km/h | 0.6 mm | High 32 |
| 28 Sept | 31.5 °C | 49 % | 38 km/h | 0.5 mm | Moderate 21 |
| 29 Sept | 32.7 °C | 44 % | 40 km/h | 2.8 mm | Moderate 12 |
| 30 Sept | 32.6 °C | 50 % | 36 km/h | 3.7 mm | Moderate 21 |
| 1 Oct | 32.6 °C | 49 % | 42 km/h | 1.0 mm | Low 10 |
| 2 Oct | 33.4 °C | 43 % | 43 km/h | 1.3 mm | High 22 |
| 3 Oct | 32.4 °C | 43 % | 41 km/h | 1.3 mm | Moderate 16 |
| 4 Oct | 34.0 °C | 36 % | 41 km/h | 0.0 mm | Moderate 21 |
| 5 Oct | 32.5 °C | 40 % | 38 km/h | 0.5 mm | High 27 |
| 6 Oct | 32.1 °C | 40 % | 42 km/h | 0.0 mm | High 30 |
| 7 Oct | 31.4 °C | 49 % | 38 km/h | 0.5 mm | High 29 |
| 8 Oct | 30.8 °C | 50 % | 40 km/h | 0.4 mm | High 30 |
| 9 Oct | 32.4 °C | 46 % | 43 km/h | 3.8 mm | Low 10 |
| 10 Oct | 33.9 °C | 38 % | 40 km/h | 0.0 mm | Moderate 21 |
| 11 Oct | 35.5 °C | 34 % | 40 km/h | 0.1 mm | High 30 |
| 12 Oct | 34.9 °C | 33 % | 39 km/h | 0.0 mm | High 33 |
| 13 Oct | 34.0 °C | 34 % | 42 km/h | 0.9 mm | High 32 |
| 14 Oct | 31.7 °C | 43 % | 41 km/h | 0.8 mm | High 24 |
| 15 Oct | 31.7 °C | 51 % | 39 km/h | 1.2 mm | Moderate 18 |
| 16 Oct | 32.9 °C | 45 % | 42 km/h | 0.0 mm | High 27 |
| 17 Oct after | 32.5 °C | 50 % | 35 km/h | 5.4 mm | High 27 |
Before and after, from space
Drag the line to compare the same ground before the fire and after it.
↔
Before · 20 Sept 2024
After · 23 Oct 2024
Sentinel-2 did not pass over on that day. Try another date, or use false colour, which is daily.
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 · CopernicusOn 16 October 2024 the air beside the fire reached 20 µg/m³ of PM2.5, but no daily average passed the WHO guideline (15).
PM2.5 peak20 µg/m³
Days over the guideline0 days
PM1030 µg/m³
Optical depth0.46
WHO 15
30 Sept4 Oct8 Oct12 Oct16 Oct
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 · 182Every 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 time | Satellite | FRP (MW) | Lat | Lon |
|---|
Other fires nearby
- 2,159 haAnalalava23 October 2024 · 10 days · 10 km away
- 6,223 haAnalalava13 October 2016 · 13 days · 11 km away
- 2,864 haAnalalava 23 October 2026 · 14 days · 12 km away
- 5,971 haAnalalavaOctober 2020 · 22 days · 16 km away
- 5,351 haAnalalava9 October 2024 · 15 days · 20 km away
- 2,736 haBealananaSeptember 2018 · 4 days · 36 km away
Frequently asked questions
- How long did the Analalava fire last?
- According to the heat detections seen by satellite inside the perimeter, it burned from 27 September 2024 to 16 October 2024 (20 days). The perimeter dates it from 2 October 2024 to 16 October 2024.
- How much area did it burn?
- The perimeter GWIS (Copernicus) rebuilt from heat detections is 4,409 hectares (44.1 km²). It is an estimate: official national figures may differ.
- Which municipalities burned?
- The fire only entered Analalava (4,427 ha, 0.5 %).
- What was the weather like?
- During the fire the temperature reached 35.5 °C, humidity dropped to 31 % and gusts hit 43 km/h. The fire danger index (FWI) reached 33, class High.
- 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
History of this page · 1 Changes in area, dates, name, official record or merged pages, compared every night since 24 October 2026.
- Start date: 2 October 2024 → 27 September 2024.
RSS Changes to this page With cross-checks and a citable version
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
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 2 October 2024 to 16 October 2024. 182 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.
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.