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Bejaia fire, September 2023 بجاية · Bejaia

Out · last detection 17 Sept 2023, 02:19 UTC

The fire started on 16 September 2023 in Bejaia, Algeria, and satellites saw it burning for 2 days. Copernicus mapped a burnt perimeter of 622 hectares from satellite imagery, spread across a single municipality.

It is the 30th largest in Bejaia since 2016 (of 101 with a page). Number 17 in Algeria in 2023, of 86.

Burnt area
622ha
Copernicus perimeter
Duration
2days
16 Sept 2023 – 17 Sept 2023
Municipalities hit
1
communes
Started on
16 Sept
2023
Heat detections
26
in a single hotspot: 32 MW
Danger at start
10
Low · FWI index
Energy released
275MW
sum of detected power

Where it burned

17 Sept 2023
HOTSPOTS BY DAY 16 Sept17 Sept

How it evolved, day by day

1617

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

The weather it burned in

34°high
42km/h · peak gust
31%lowest humidity

It had gone 0 days without rain (1 mm or more) when it started. Rain came after the fire: 2.5 mm on 22 Sept.

This area had burned before

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

What happened to each town

  1. Bejaia بجاية 176,139 inhabitants · 11.4 km from the town where it started
    623 ha reached on 16 Sept
    5.3 %

Burnt area inside each municipality, from crossing the official perimeter with administrative boundaries. The distance is from the town centre to the nearest fire: staying a kilometre away does not mean it reached the houses.

What burned

  • Mixed forest62 %
  • Other natural land38 %

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)
16 Sept 31.0 °C 49 % 34 km/h 1.0 mm Low 10
17 Sept 33.8 °C 31 % 42 km/h 0.0 mm High 28
18 Sept after 27.8 °C 56 % 25 km/h 0.0 mm Moderate 17
19 Sept after 26.8 °C 80 % 23 km/h 0.2 mm Low 9
20 Sept after 29.0 °C 62 % 31 km/h 0.9 mm Low 9
21 Sept after 26.6 °C 68 % 26 km/h 0.0 mm Low 10
22 Sept after 26.6 °C 59 % 37 km/h 2.5 mm Low 6

Before and after, from space

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

Before · 9 Sept 2023
After · 24 Sept 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.

The smoke

CAMS · Copernicus

On 17 September 2023 the air beside the fire reached 61 µg/m³ of PM2.5. That day averaged 35: 2.3 times the WHO daily guideline (15).

PM2.5 peak61 µg/m³
Days over the guideline5 days
PM10158 µg/m³
Optical depth0.86
14151617181920
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 · 26Every 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 Bejaia fire last?
Copernicus dates it between 16 September 2023 and 17 September 2023: 2 days between the first and last image with fire.
How much area did it burn?
The perimeter Copernicus measured from satellite imagery is 622 hectares (6.2 km²). Official national figures may differ.
Which municipalities burned?
The fire only entered Bejaia (623 ha, 5.3 %).
Did the fire reach a town?
The closest fire to a town centre came within 11.4 km of Bejaia. That is the distance to the perimeter or nearest hotspot; it does not mean it entered the houses.
What was the weather like?
During the fire the temperature reached 33.8 °C, humidity dropped to 31 % and gusts hit 42 km/h. The fire danger index (FWI) reached 28, class High.
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

Satellite cross-check

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.

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.