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Pratola Peligna fire, July 2023 Pratola Peligna, Sulmona

Out · last detection 29 Jul 2023, 12:39 UTC

The fire started on 25 July 2023 in Pratola Peligna, Italy, and satellites saw it burning for 5 days. Copernicus mapped a burnt perimeter of 432 hectares from satellite imagery, spread across 2 municipalities.

It is the 4th largest in L'Aquila since 2016 (of 20 with a page). Number 44 in Italy in 2023, of 207.

The power measured by the satellite is low (21.2 MW in the strongest hotspot), more typical of grass or stubble burning, or a slow surface fire, than of a large crown fire.

Compare with…
Burnt area
432ha
Copernicus perimeter
Duration
5days
25 Jul 2023 – 29 Jul 2023
Municipalities hit
2
municipalities
Started on
25 Jul
2023
Heat detections
3
in a single hotspot: 21 MW
Danger at start
30
High · FWI index
Average daily power
18MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 25 Jul29 Jul
29 Jul 2023

How it evolved, day by day

26 Jul 2023 · 5 MW · 1 29 Jul 2023 · 32 MW · 2
26 Jul 29 Jul

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

The weather it burned in

33°high
84km/h · peak gust
34%lowest humidity

It had gone 3 days without rain (1 mm or more) when it started. Rain came after the fire: 2.6 mm on 4 Aug.

This area had burned before

63% of the perimeter overlaps earlier fires recorded since 2016: 274 ha in 2017.

What happened to each town

  1. Pratola Peligna 7,039 inhabitants · 3.1 km from the centre where it started
    412 ha reached on 26 Jul
    14 %
  2. Sulmona 22,175 inhabitants · 5.0 km from the centre
    20 ha
    0.4 %

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 forest28 %
  • Coniferous forest21 %
  • Other natural land19 %
  • Broadleaved forest18 %
  • Scrub and transitional woodland7.6 %
  • Agricultural areas5.3 %

Natura 2000 protected area affected: 94 %

Natura 2000 sites (European Environment Agency, 2024 release) crossed by the perimeter.

Land cover inside the perimeter according to Corine Land Cover, as reported by Copernicus.

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)
25 Jul 32.8 °C 34 % 84 km/h 0.3 mm High 30
26 Jul 25.4 °C 43 % 42 km/h 0.3 mm Moderate 20
27 Jul 25.0 °C 43 % 19 km/h 0.4 mm Moderate 18
28 Jul 27.7 °C 32 % 26 km/h 0.0 mm Moderate 20
29 Jul 28.4 °C 40 % 23 km/h 0.0 mm Moderate 20
30 Jul after 29.2 °C 36 % 46 km/h 0.0 mm High 23
31 Jul after 27.0 °C 47 % 25 km/h 0.6 mm Moderate 15
1 Aug after 29.4 °C 43 % 38 km/h 0.0 mm Moderate 19
2 Aug after 29.4 °C 41 % 28 km/h 0.0 mm Moderate 19
3 Aug after 30.9 °C 36 % 30 km/h 0.0 mm High 22
4 Aug after 30.6 °C 34 % 51 km/h 2.6 mm Low 10

Before and after, from space

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

Before · 18 Jul 2023
After · 5 Aug 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 24 July 2023 the air beside the fire reached 19 µg/m³ of PM2.5. That day averaged 15: 1.0 times the WHO daily guideline (15).

PM2.5 peak19 µg/m³
Days over the guideline1 day
PM1060 µg/m³
Optical depth0.57
2324252627282930311
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 · 3Every 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 Italy ›

Frequently asked questions

How long did the Pratola Peligna fire last?
According to the heat detections seen by satellite inside the perimeter, it burned from 25 July 2023 to 29 July 2023 (5 days). The perimeter dates it from 25 July 2023 to 26 July 2023.
How much area did it burn?
The perimeter Copernicus measured from satellite imagery is 432 hectares (4.3 km²). Official national figures may differ.
Which municipalities burned?
The fire entered 2 municipalities: Pratola Peligna (412 ha, 14 %); Sulmona (20 ha, 0.4 %).
Did the fire reach a town?
The fire started in Pratola Peligna and came within 3.1 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 32.8 °C, humidity dropped to 34 % and gusts hit 84 km/h. The fire danger index (FWI) reached 30, class High.
Where does this data come from?
From the EFFIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Italy (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: 112 · 1515 · 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 112 · 1515.

How we know this
  • Perimeter: EFFIS (Copernicus), mapped on satellite imagery.
  • Dates adjusted with the VIIRS detections inside the perimeter, which said 25 July 2023 to 26 July 2023. 3 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 ADM4 (Creative Commons Attribution 3.0 License). 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.