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Bulen fire, 1 March 2023 Bulen, Dibat

Out · last detection 6 Mar 2023, 11:08 UTC

The fire started on 1 March 2023 in Bulen, Ethiopia, and satellites saw it burning for 6 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 2,620 hectares from heat detections, spread across 2 municipalities.

It is the 430th largest in Beneshangul Gumu since 2016 (of 699 with a page). Number 59 in Ethiopia in 2023, of 101.

Compare with…
Burnt area
2,620ha
GWIS perimeter (Copernicus)
Duration
6days
1 Mar 2023 – 6 Mar 2023
Municipalities hit
2
districts
Started on
1 Mar
2023
Heat detections
115
in a single hotspot: 152 MW
Danger at start
48
Very high · FWI index
Average daily power
508MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 1 Mar6 Mar
6 Mar 2023

How it evolved, day by day

1 Mar 2023 · 988 MW · 81 2 Mar 2023 · 533 MW · 18 4 Mar 2023 · 54 MW · 7 6 Mar 2023 · 457 MW · 9
1 Mar 2 Mar 4 Mar 6 Mar

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
38km/h · peak gust
9%lowest humidity

It had gone more than two months without rain (1 mm or more) when it started. Rain came after the fire: 6.0 mm on 12 Mar.

This area had burned before

100% of the perimeter overlaps earlier fires recorded since 2016: 1,384 ha in 2016, 1,757 ha in 2017, 1,895 ha in 2019, 847 ha in 2020, 52 ha in 2021, 2,081 ha in 2022. Part of it burned more than once, so the yearly figures add up to more than the 2,637 ha that had burned before.

How big is it?

10 km
It burned the equivalent of 1.7% 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. Bulen where it started
    2,509 ha reached on 1 Mar
    0.8 %
  2. 130 ha reached on 1 Mar
    0.1 %

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)
1 Mar 33.7 °C 13 % 37 km/h 0.0 mm Very high 48
2 Mar 32.5 °C 12 % 38 km/h 0.0 mm Very high 47
3 Mar 34.8 °C 9 % 30 km/h 0.0 mm Very high 49
4 Mar 35.2 °C 11 % 27 km/h 0.0 mm Very high 46
5 Mar 32.7 °C 17 % 21 km/h 0.0 mm Very high 44
6 Mar 35.5 °C 18 % 33 km/h 0.0 mm Very high 49
7 Mar after 35.5 °C 17 % 22 km/h 0.0 mm Very high 47
8 Mar after 33.1 °C 17 % 27 km/h 0.0 mm Very high 44
9 Mar after 32.3 °C 27 % 23 km/h 0.8 mm High 30
10 Mar after 29.8 °C 31 % 25 km/h 0.0 mm High 30
11 Mar after 30.8 °C 25 % 23 km/h 0.0 mm High 34
12 Mar after 30.6 °C 30 % 22 km/h 6.0 mm Low 7

Before and after, from space

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

Before · 22 Feb 2023
After · 13 Mar 2023

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 · 115Every 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 Bulen fire last?
GWIS (Copernicus) dates it between 1 March 2023 and 6 March 2023: 6 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 2,620 hectares (26.2 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire entered 2 municipalities: Bulen (2,509 ha, 0.8 %); Dibat (130 ha, 0.1 %).
What was the weather like?
During the fire the temperature reached 35.5 °C, humidity dropped to 9 % and gusts hit 38 km/h. The fire danger index (FWI) reached 49, 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. 115 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.