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Yaso fire, 13 February 2025 Yaso, Gida Ayana

Out · last detection 27 Feb 2025, 22:27 UTC

The fire started on 13 February 2025 in Yaso, Ethiopia, and satellites saw it burning for 16 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 3,770 hectares from heat detections, spread across 2 municipalities.

It is the 70th largest in Oromia since 2016 (of 264 with a page). Number 33 in Ethiopia in 2025, of 127.

Compare with…
Burnt area
3,770ha
GWIS perimeter (Copernicus)
Duration
16days
13 Feb 2025 – 28 Feb 2025
Municipalities hit
2
districts
Started on
13 Feb
2025
Heat detections
142
in a single hotspot: 69 MW
Danger at start
36
High · FWI index
Average daily power
92MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 13 Feb28 Feb
27 Feb 2025

How it evolved, day by day

14 Feb 2025 · 10 MW · 6 15 Feb 2025 · 1 MW · 1 17 Feb 2025 · 36 MW · 6 18 Feb 2025 · 55 MW · 15 19 Feb 2025 · 113 MW · 28 20 Feb 2025 · 119 MW · 37 21 Feb 2025 · 207 MW · 30 24 Feb 2025 · 7 MW · 1 26 Feb 2025 · 359 MW · 15 27 Feb 2025 · 19 MW · 3
14 Feb 17 Feb 19 Feb 21 Feb 26 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

36°high
37km/h · peak gust
14%lowest humidity

It had gone more than two months without rain (1 mm or more) when it started.

This area had burned before

100% of the perimeter overlaps earlier fires recorded since 2016: 1,988 ha in 2016, 3,004 ha in 2017, 1,632 ha in 2019, 1,311 ha in 2020, 3,782 ha in 2021, 471 ha in 2022. Part of it burned more than once, so the yearly figures add up to more than the 3,779 ha that had burned before.

How big is it?

10 km
It burned the equivalent of 2.4% of the area of London (38 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. Yaso where it started
    3,784 ha reached on 14 Feb
    1.4 %
  2. 13 ha reached on 26 Feb
    0.0 %

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 area< 0.1 ha
Residents< 20

Inside the perimeter there was no noticeable built-up land and almost nobody lived there (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)
17 Feb 35.3 °C 22 % 33 km/h 0.1 mm High 36
18 Feb 35.9 °C 18 % 28 km/h 0.1 mm Very high 38
19 Feb 34.6 °C 22 % 21 km/h 0.0 mm Very high 38
20 Feb 32.7 °C 19 % 33 km/h 0.0 mm Very high 42
21 Feb 34.9 °C 14 % 37 km/h 0.0 mm Very high 43
22 Feb 35.4 °C 11 % 36 km/h 0.0 mm Very high 47
23 Feb 36.5 °C 12 % 37 km/h 0.0 mm Very high 47
24 Feb 36.0 °C 13 % 38 km/h 0.0 mm Very high 47
25 Feb 35.6 °C 11 % 38 km/h 0.0 mm Very high 47
26 Feb 36.8 °C 16 % 41 km/h 0.0 mm Very high 49
27 Feb 35.8 °C 17 % 34 km/h 0.0 mm Very high 46
28 Feb 36.9 °C 17 % 28 km/h 0.0 mm Very high 46
1 Mar after 36.6 °C 20 % 35 km/h 0.0 mm Very high 46
2 Mar after 36.1 °C 16 % 30 km/h 0.0 mm Very high 45
3 Mar after 36.7 °C 20 % 24 km/h 0.0 mm Very high 43

Before and after, from space

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

Before · 6 Feb 2025
After · 7 Mar 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 23 February 2025 the air beside the fire reached 84 µg/m³ of PM2.5. That day averaged 52: 3.5 times the WHO daily guideline (15).

PM2.5 peak84 µg/m³
Days over the guideline9 days
PM1087 µg/m³
Optical depth0.74
15161718192021222324
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 · 142Every 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 Ethiopia ›

Frequently asked questions

How long did the Yaso fire last?
According to the heat detections seen by satellite inside the perimeter, it burned from 13 February 2025 to 28 February 2025 (16 days). The perimeter dates it from 17 February 2025 to 21 February 2025.
How much area did it burn?
The perimeter GWIS (Copernicus) rebuilt from heat detections is 3,770 hectares (37.7 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire entered 2 municipalities: Yaso (3,784 ha, 1.4 %); Gida Ayana (13 ha, 0.0 %).
What was the weather like?
During the fire the temperature reached 35.9 °C, humidity dropped to 14 % and gusts hit 37 km/h. The fire danger index (FWI) reached 43, class Very high.
Where does this data come from?
From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Ethiopia (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 · 2 Changes in area, dates, name, official record or merged pages, compared every night since 24 October 2026.
  1. Last day with fire: 21 February 2025 → 28 February 2025.
  2. Start date: 17 February 2025 → 13 February 2025.

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 adjusted with the VIIRS detections inside the perimeter, which said 17 February 2025 to 21 February 2025. 142 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 ADM3 (Open Data Commons Open Database License 1.0). 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.