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Gog fire, 18 January 2025 Gog

Out · last detection 18 Jan 2025, 10:41 UTC

The fire started on 18 January 2025 in Gog, Ethiopia, and satellites saw it burning for 1 day. Copernicus’s global GWIS system rebuilt a burnt perimeter of 2,555 hectares from heat detections, spread across a single municipality.

It is the 419th largest in Gambela since 2016 (of 611 with a page). Number 77 in Ethiopia in 2025, of 127.

Compare with…
Burnt area
2,555ha
GWIS perimeter (Copernicus)
Duration
1day
18 Jan 2025 – 18 Jan 2025
Municipalities hit
1
districts
Started on
18 Jan
2025
Heat detections
72
in a single hotspot: 124 MW
Danger at start
47
Very high · FWI index
Average daily power
1.1GW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 18 Jan18 Jan

How it evolved, day by day

18 Jan 2025 · 1,097 MW · 66

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

The weather it burned in

39°high
34km/h · peak gust
18%lowest humidity

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

This area had burned before

98% of the perimeter overlaps earlier fires recorded since 2016: 1,323 ha in 2016, 1,539 ha in 2020, 1,390 ha in 2021, 838 ha in 2022, 368 ha in 2023. Part of it burned more than once, so the yearly figures add up to more than the 2,516 ha that had burned before.

How big is it?

10 km
It burned the equivalent of 1.6% of the area of London (26 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. Gog where it started
    2,571 ha reached on 17 Jan
    0.8 %

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)
18 Jan 39.4 °C 18 % 34 km/h 0.0 mm Very high 47
19 Jan after 39.7 °C 18 % 23 km/h 0.0 mm Very high 42
20 Jan after 40.0 °C 16 % 19 km/h 0.0 mm Very high 42
21 Jan after 40.1 °C 16 % 32 km/h 0.0 mm Very high 46
22 Jan after 39.1 °C 15 % 35 km/h 0.0 mm Very high 49
23 Jan after 38.9 °C 19 % 27 km/h 0.0 mm Very high 45
24 Jan after 37.5 °C 18 % 31 km/h 0.0 mm Very high 48
25 Jan after 38.7 °C 21 % 24 km/h 0.0 mm Very high 44
26 Jan after 38.6 °C 15 % 23 km/h 0.0 mm Very high 43
27 Jan after 38.7 °C 12 % 23 km/h 0.0 mm Very high 48
28 Jan after 38.7 °C 11 % 23 km/h 0.0 mm Very high 48

Before and after, from space

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

Before · 11 Jan 2025
After · 25 Jan 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 21 January 2025 the air beside the fire reached 54 µg/m³ of PM2.5. That day averaged 42: 2.8 times the WHO daily guideline (15).

PM2.5 peak54 µg/m³
Days over the guideline6 days
PM1057 µg/m³
Optical depth0.92
161718192021
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 · 72Every 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 Gog fire last?
GWIS (Copernicus) dates it between 18 January 2025 and 18 January 2025: 1 day 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 2,555 hectares (25.6 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Gog (2,571 ha, 0.8 %).
What was the weather like?
During the fire the temperature reached 39.4 °C, humidity dropped to 18 % and gusts hit 34 km/h. The fire danger index (FWI) reached 47, 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 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. 72 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.