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Harbil fire, August 2021 حربيل · Harbil, Ain Lagradj, Hammam Guergour

Out · last detection 12 Aug 2021, 01:42 UTC

The fire started on 11 August 2021 in Harbil, Algeria, and satellites saw it burning for 2 days. Copernicus mapped a burnt perimeter of 729 hectares from satellite imagery, spread across 3 municipalities.

It is the 9th largest in Bordj Bou Arreidj since 2016 (of 13 with a page). Number 28 in Algeria in 2021, of 92.

Compare with…

Suggestions: Harbil · 2017Beni Maouche · 2026Beni Djellil · 2023Boukhelifa · 2021

Burnt area
729ha
Copernicus perimeter
Duration
2days
11 Aug 2021 – 12 Aug 2021
Municipalities hit
3
communes
Started on
11 Aug
2021
Heat detections
33
in a single hotspot: 75 MW
Danger at start
58
Extreme · FWI index
Average daily power
589MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 11 Aug12 Aug
12 Aug 2021

How it evolved, day by day

11 Aug 2021 · 1,164 MW · 28 12 Aug 2021 · 13 MW · 5
11 Aug 12 Aug

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
50km/h · peak gust
12%lowest humidity

It had gone 10 days without rain (1 mm or more) when it started. Rain came after the fire: 1.0 mm on 19 Aug.

This area had burned before

35% of the perimeter overlaps earlier fires recorded since 2016: 255 ha in 2017.

How big is it?

10 km
It burned the equivalent of 0.5% of the area of London (7.3 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. Harbil حربيل 3,675 inhabitants · 2.8 km from the centre where it started
    513 ha reached on 11 Aug
    6.0 %
  2. Ain Lagradj عين لقراج 14,668 inhabitants · 2.9 km from the centre
    212 ha reached on 11 Aug
    2.9 %
  3. Hammam Guergour حمام قرقور 15,853 inhabitants · 13.0 km from the centre
    5 ha
    0.1 %

Burnt area inside each municipality, from crossing the official 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.

What burned

  • Mixed forest51 %
  • Other natural land49 %

Land cover inside the perimeter as reported by Copernicus EFFIS (outside the Corine Land Cover area).

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)
11 Aug 38.0 °C 12 % 50 km/h 0.0 mm Extreme 58
12 Aug 39.5 °C 12 % 35 km/h 0.0 mm Extreme 53
13 Aug after 37.9 °C 12 % 39 km/h 0.0 mm Extreme 53
14 Aug after 35.9 °C 14 % 45 km/h 0.0 mm Extreme 64
15 Aug after 36.1 °C 15 % 36 km/h 0.0 mm Extreme 58
16 Aug after 36.4 °C 14 % 35 km/h 0.6 mm Very high 48
17 Aug after 33.2 °C 29 % 34 km/h 0.4 mm Very high 42
18 Aug after 29.5 °C 36 % 34 km/h 0.0 mm High 34
19 Aug after 33.4 °C 20 % 41 km/h 1.0 mm High 35

Before and after, from space

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

Before · 4 Aug 2021
After · 19 Aug 2021

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 12 August 2021 the air beside the fire reached 80 µg/m³ of PM2.5. That day averaged 34: 2.3 times the WHO daily guideline (15).

PM2.5 peak80 µg/m³
Days over the guideline7 days
PM10130 µg/m³
9101112131415
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 · 33Every 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 Algeria ›

Frequently asked questions

How long did the Harbil fire last?
Copernicus dates it between 11 August 2021 and 12 August 2021: 2 days between the first and last image with fire.
How much area did it burn?
The perimeter Copernicus measured from satellite imagery is 729 hectares (7.3 km²). Official national figures may differ.
Which municipalities burned?
The fire entered 3 municipalities: Harbil (513 ha, 6.0 %); Ain Lagradj (212 ha, 2.9 %); Hammam Guergour (5 ha, 0.1 %).
Did the fire reach a town?
The fire started in Harbil and came within 2.8 km of its centre. That is the distance from the perimeter, or the nearest hotspot, to the point marking the centre; it does not mean it entered the houses.
What was the weather like?
During the fire the temperature reached 39.5 °C, humidity dropped to 12 % and gusts hit 50 km/h. The fire danger index (FWI) reached 58, class Extreme.
Where does this data come from?
From the EFFIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Algeria (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.

Emergency number: 14 · 1021 · Emergency number and official warnings ›

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.

Report an error
What do you think is wrong?

We will only use your email to reply about this report. Privacy. This is not an emergency service: if there is a fire now, call 14 · 1021.

How we know this
  • Perimeter: EFFIS (Copernicus), mapped on satellite imagery.
  • Dates from the perimeter: the VIIRS detections inside it did not change them. 33 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 and land cover come from the Copernicus European Forest Fire Information System (EFFIS), measured on MODIS and Sentinel-2 imagery and published under CC BY 4.0. 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 (Creative Commons Attribution-ShareAlike 2.0). The area per municipality is computed by WorldFires by crossing the perimeter with those boundaries, so it may differ slightly from each country’s official figure.