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Ibn Badis fire, 30 July 2017 ابن باديس · Ibn Badis, Zighoud Youcef, Constantine

Out · last detection 2 Aug 2017, 12:42 UTC

The fire started on 30 July 2017 in Ibn Badis, Algeria, and satellites saw it burning for 4 days. Copernicus mapped a burnt perimeter of 1,334 hectares from satellite imagery, spread across 3 municipalities.

It is the 12th largest in Constantine since 2016 (of 31 with a page). Number 14 in Algeria in 2017, of 173.

Compare with…
Burnt area
1,334ha
Copernicus perimeter
Duration
4days
30 Jul 2017 – 2 Aug 2017
Municipalities hit
3
communes
Started on
30 Jul
2017
Heat detections
70
in a single hotspot: 115 MW
Danger at start
57
Extreme · FWI index
Average daily power
288MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 30 Jul2 Aug
2 Aug 2017

How it evolved, day by day

30 Jul 2017 · 733 MW · 25 31 Jul 2017 · 310 MW · 29 1 Aug 2017 · 81 MW · 11 2 Aug 2017 · 27 MW · 5
30 Jul 31 Jul 1 Aug 2 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

39°high
53km/h · peak gust
8%lowest humidity

It had gone 6 days without rain (1 mm or more) when it started. Rain came after the fire: 1.4 mm on 5 Aug.

This area had burned before

No earlier perimeters overlap this fire since 2016, when the satellite record begins.

How big is it?

10 km
It burned the equivalent of 0.8% of the area of London (13 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. Ibn Badis ابن باديس 18,735 inhabitants · 795.4 km from the centre where it started
    1,295 ha reached on 30 Jul
    4.0 %
  2. Zighoud Youcef زيغود يوسف 35,248 inhabitants · 10.6 km from the centre
    28 ha reached on 31 Jul
    0.1 %
  3. Constantine الخروب 179,033 inhabitants · 15.8 km from the centre
    14 ha reached on 2 Aug
    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

  • Other natural land50 %
  • Mixed forest45 %
  • Agricultural areas4.8 %

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

People and buildings inside the perimeter

GHSL 2015
Built-up area0.49 ha
Residents≈ 40

Inside the perimeter there were about 0.49 hectares of built-up land and about 40 residents (GHSL 2015, 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.

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)
30 Jul 36.8 °C 12 % 53 km/h 0.0 mm Extreme 57
31 Jul 38.7 °C 8 % 39 km/h 0.0 mm Extreme 56
1 Aug 36.8 °C 11 % 49 km/h 0.0 mm Extreme 61
2 Aug 36.4 °C 10 % 46 km/h 0.0 mm Extreme 62
3 Aug after 37.7 °C 10 % 52 km/h 0.0 mm Extreme 66
4 Aug after 36.6 °C 10 % 44 km/h 0.7 mm Extreme 55
5 Aug after 36.8 °C 10 % 45 km/h 1.4 mm Extreme 53

Before and after, from space

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

Before · 23 Jul 2017
After · 9 Aug 2017

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 5 August 2017 the air beside the fire reached 87 µg/m³ of PM2.5. That day averaged 37: 2.4 times the WHO daily guideline (15).

PM2.5 peak87 µg/m³
Days over the guideline6 days
PM1099 µg/m³
2829303112345
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 · 70Every 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 Ibn Badis fire last?
According to the heat detections seen by satellite inside the perimeter, it burned from 30 July 2017 to 2 August 2017 (4 days). The perimeter dates it from 31 July 2017 to 2 August 2017.
How much area did it burn?
The perimeter Copernicus measured from satellite imagery is 1,334 hectares (13.3 km²). Official national figures may differ.
Which municipalities burned?
The fire entered 3 municipalities: Ibn Badis (1,295 ha, 4.0 %); Zighoud Youcef (28 ha, 0.1 %); Constantine (14 ha, 0.1 %).
Did the fire reach a town?
The fire came within 10.6 km of the centre of Zighoud Youcef, the closest of the areas it touched. 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 38.7 °C, humidity dropped to 8 % and gusts hit 53 km/h. The fire danger index (FWI) reached 62, 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 adjusted with the VIIRS detections inside the perimeter, which said 31 July 2017 to 2 August 2017. 70 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 2015, 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 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.