سجنان fire, August 2017 سجنان
The fire started on 1 August 2017 in سجنان, Tunisia, and satellites saw it burning for 4 days. Copernicus mapped a burnt perimeter of 3,705 hectares from satellite imagery, spread across a single municipality.
It is the largest fire in Bizerte since 2016 (of 39 with a page). The largest in Tunisia in 2017, of 31.
- Burnt area
- 3,705ha
- Copernicus perimeter
- Duration
- 4days
- 1 Aug 2017 – 4 Aug 2017
- Municipalities hit
- 1
- delegations
- Started on
- 1 Aug
- 2017
- Heat detections
- 152
- in a single hotspot: 300 MW
- Danger at start
- 55
- Extreme · FWI index
- Energy released
- 8.1GW
- sum of detected power
Where it burned
How it evolved, day by day
Fire radiative power detected each day, in megawatts, and number of hotspots. The magenta bar marks the peak day.
The weather it burned in
It had gone 55 days without rain (1 mm or more) when it started.
This area had burned before
No earlier perimeters overlap this fire since 2016, when the satellite record begins.
What happened to each town
-
سجنان where it started3,713 ha reached on 1 Aug6.0 %
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
- Broadleaved forest38 %
- Scrub and transitional woodland31 %
- Coniferous forest20 %
- Sclerophyllous scrub7.8 %
- Agricultural areas1.8 %
- Other natural land0.9 %
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) |
|---|---|---|---|---|---|
| 1 Aug | 41.2 °C | 18 % | 44 km/h | 0.0 mm | Extreme 55 |
| 2 Aug | 39.2 °C | 22 % | 33 km/h | 0.0 mm | Extreme 51 |
| 3 Aug | 40.4 °C | 17 % | 36 km/h | 0.0 mm | Extreme 51 |
| 4 Aug | 41.6 °C | 16 % | 30 km/h | 0.0 mm | Very high 46 |
| 5 Aug after | 37.1 °C | 34 % | 29 km/h | 0.0 mm | Very high 38 |
| 6 Aug after | 37.5 °C | 32 % | 31 km/h | 0.0 mm | Very high 39 |
| 7 Aug after | 37.0 °C | 39 % | 28 km/h | 0.0 mm | High 34 |
| 8 Aug after | 40.1 °C | 29 % | 24 km/h | 0.5 mm | High 34 |
| 9 Aug after | 40.2 °C | 25 % | 39 km/h | 0.5 mm | Very high 44 |
| 10 Aug after | 30.9 °C | 51 % | 47 km/h | 0.0 mm | High 34 |
| 11 Aug after | 28.4 °C | 43 % | 39 km/h | 0.0 mm | High 31 |
| 12 Aug after | 27.1 °C | 46 % | 46 km/h | 0.3 mm | High 32 |
| 13 Aug after | 29.4 °C | 42 % | 30 km/h | 0.0 mm | High 27 |
| 14 Aug after | 35.5 °C | 39 % | 40 km/h | 0.0 mm | High 34 |
Before and after, from space
Drag the line to compare the same ground before the fire and after it.
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 · 152Every satellite heat detection, one by one, with time, satellite, power and coordinates.
| Date and time | Satellite | FRP (MW) | Lat | Lon |
|---|
Other fires nearby
Frequently asked questions
- How long did the سجنان fire last?
- Copernicus dates it between 1 August 2017 and 4 August 2017: 4 days between the first and last image with fire.
- How much area did it burn?
- The perimeter Copernicus measured from satellite imagery is 3,705 hectares (37.0 km²). Official national figures may differ.
- Which municipalities burned?
- The fire only entered سجنان (3,713 ha, 6.0 %).
- What was the weather like?
- During the fire the temperature reached 41.6 °C, humidity dropped to 16 % and gusts hit 44 km/h. The fire danger index (FWI) reached 55, class Extreme.
- Where does this data come from?
- From the EFFIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Tunisia (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: 198
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
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 ADM2 (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 slightly from each country’s official figure.