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Dima fire, 29 December 2018 Dima, Gog

Out · last detection 16 Jan 2019, 11:18 UTC

The fire started on 29 December 2018 in Dima, Ethiopia, and satellites saw it burning for 19 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 26,386 hectares from heat detections, spread across 2 municipalities.

It is the 11th largest in Gambela since 2016 (of 611 with a page). Number 3 in Ethiopia in 2018, of 102.

Compare with…
Burnt area
26,386ha
GWIS perimeter (Copernicus)
Duration
19days
29 Dec 2018 – 16 Jan 2019
Municipalities hit
2
districts
Started on
29 Dec
2018
Heat detections
737
in a single hotspot: 151 MW
Danger at start
36
High · FWI index
Average daily power
709MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 29 Dec16 Jan
16 Jan 2019

How it evolved, day by day

29 Dec 2018 · 3 MW · 3 31 Dec 2018 · 103 MW · 4 3 Jan 2019 · 184 MW · 29 4 Jan 2019 · 2,611 MW · 222 5 Jan 2019 · 1,409 MW · 135 6 Jan 2019 · 779 MW · 105 7 Jan 2019 · 2,095 MW · 145 8 Jan 2019 · 527 MW · 80 9 Jan 2019 · 53 MW · 7 12 Jan 2019 · 8 MW · 2 16 Jan 2019 · 24 MW · 5
29 Dec 3 Jan 4 Jan 5 Jan 7 Jan 9 Jan 16 Jan

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

The weather it burned in

40°high
34km/h · peak gust
11%lowest humidity

It had gone 23 days without rain (1 mm or more) when it started.

This area had burned before

70% of the perimeter overlaps earlier fires recorded since 2016: 13,273 ha in 2016, 2,205 ha in 2017, 12,818 ha in 2018. Part of it burned more than once, so the yearly figures add up to more than the 18,424 ha that had burned before.

How big is it?

10 km
It burned the equivalent of 17% of the area of London (264 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. Dima where it started
    23,476 ha reached on 29 Dec
    3.0 %
  2. Gog
    3,103 ha reached on 29 Dec
    1.0 %

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.

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)
29 Dec 37.8 °C 25 % 26 km/h 0.3 mm High 36
30 Dec 36.1 °C 29 % 31 km/h 0.0 mm Very high 40
31 Dec 34.9 °C 35 % 27 km/h 0.0 mm High 33
1 Jan 35.7 °C 34 % 28 km/h 0.4 mm High 37
2 Jan 36.0 °C 29 % 17 km/h 0.0 mm High 34
3 Jan 36.9 °C 23 % 16 km/h 0.0 mm High 36
4 Jan 37.7 °C 25 % 27 km/h 0.0 mm High 37
5 Jan 37.5 °C 25 % 21 km/h 0.0 mm High 35
6 Jan 38.3 °C 20 % 25 km/h 0.0 mm Very high 39
7 Jan 38.6 °C 16 % 18 km/h 0.0 mm Very high 42
8 Jan 38.5 °C 15 % 31 km/h 0.0 mm Very high 48
9 Jan 38.1 °C 17 % 30 km/h 0.0 mm Very high 45
10 Jan 38.5 °C 14 % 25 km/h 0.0 mm Very high 44
11 Jan 38.1 °C 19 % 27 km/h 0.0 mm Very high 45
12 Jan 38.7 °C 17 % 26 km/h 0.0 mm Very high 46
13 Jan 38.9 °C 15 % 29 km/h 0.0 mm Very high 47
14 Jan 39.1 °C 13 % 28 km/h 0.0 mm Very high 47
15 Jan 40.4 °C 11 % 25 km/h 0.0 mm Very high 47
16 Jan 40.2 °C 11 % 34 km/h 0.0 mm Extreme 53
17 Jan after 40.3 °C 14 % 34 km/h 0.0 mm Extreme 53
18 Jan after 40.4 °C 16 % 27 km/h 0.0 mm Extreme 50
19 Jan after 39.0 °C 18 % 36 km/h 0.0 mm Extreme 54
20 Jan after 38.7 °C 19 % 30 km/h 0.0 mm Very high 49
21 Jan after 39.7 °C 15 % 17 km/h 0.0 mm Very high 46
22 Jan after 40.2 °C 14 % 29 km/h 0.0 mm Very high 48
23 Jan after 39.8 °C 14 % 35 km/h 0.0 mm Extreme 52
24 Jan after 39.7 °C 15 % 27 km/h 0.0 mm Very high 49
25 Jan after 40.1 °C 15 % 27 km/h 0.0 mm Very high 50
26 Jan after 40.4 °C 16 % 33 km/h 0.0 mm Extreme 54

Before and after, from space

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

Before · 22 Dec 2018
After · 23 Jan 2019

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 · 737Every 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 Dima fire last?
According to the heat detections seen by satellite inside the perimeter, it burned from 29 December 2018 to 16 January 2019 (19 days). The perimeter dates it from 3 January 2019 to 9 January 2019.
How much area did it burn?
The perimeter GWIS (Copernicus) rebuilt from heat detections is 26,386 hectares (263.9 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire entered 2 municipalities: Dima (23,476 ha, 3.0 %); Gog (3,103 ha, 1.0 %).
What was the weather like?
During the fire the temperature reached 40.4 °C, humidity dropped to 11 % and gusts hit 34 km/h. The fire danger index (FWI) reached 53, class Extreme.
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; 3 polygons grouped in this page.
  • Dates adjusted with the VIIRS detections inside the perimeter, which said 3 January 2019 to 9 January 2019. 737 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.

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.