Grisolia fire, June 2017 Grisolia, Santa Maria del Cedro, Maierà
The fire started on 22 June 2017 in Grisolia, Italy, and satellites saw it burning for 4 days. Copernicus mapped a burnt perimeter of 291 hectares from satellite imagery, spread across 3 municipalities.
It is the 28th largest in Cosenza since 2016 (of 145 with a page). Number 97 in Italy in 2017, of 361.
We have the Copernicus perimeter for this fire, but the VIIRS sensors did not capture it in enough detail: no day-by-day evolution, but the split by municipality is there.
- Burnt area
- 291ha
- Copernicus perimeter
- Duration
- 4days
- 22 Jun 2017 – 25 Jun 2017
- Municipalities hit
- 3
- municipalities
- Started on
- 22 Jun
- 2017
- Danger at start
- 4
- Very low · FWI index
Where it burned
The weather it burned in
It had gone 0 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
-
254 ha reached on 29 Jun5.0 %
-
Santa Maria del Cedro 5,002 inhabitants · 1.0 km from the town35 ha reached on 22 Jun1.9 %
-
Maierà 1,118 inhabitants · 0.4 km from the town2 ha0.1 %
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
- Agricultural areas64 %
- Scrub and transitional woodland23 %
- Other natural land7.6 %
- Artificial surfaces4.8 %
- Broadleaved forest1.0 %
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) |
|---|---|---|---|---|---|
| 22 Jun | 27.5 °C | 58 % | 27 km/h | 1.4 mm | Very low 4 |
| 23 Jun | 27.5 °C | 66 % | 31 km/h | 0.0 mm | Low 7 |
| 24 Jun | 27.2 °C | 64 % | 30 km/h | 0.0 mm | Low 8 |
| 25 Jun | 27.9 °C | 63 % | 31 km/h | 0.0 mm | Low 9 |
| 26 Jun after | 28.3 °C | 59 % | 30 km/h | 0.0 mm | Low 10 |
| 27 Jun after | 32.0 °C | 30 % | 36 km/h | 0.0 mm | Moderate 21 |
| 28 Jun after | 32.8 °C | 29 % | 35 km/h | 0.0 mm | High 22 |
| 29 Jun after | 29.2 °C | 38 % | 50 km/h | 0.0 mm | High 25 |
| 30 Jun after | 35.0 °C | 23 % | 37 km/h | 0.0 mm | High 28 |
| 1 Jul after | 29.4 °C | 45 % | 34 km/h | 0.0 mm | High 22 |
| 2 Jul after | 26.0 °C | 47 % | 60 km/h | 0.0 mm | High 26 |
| 3 Jul after | 29.6 °C | 31 % | 35 km/h | 0.0 mm | High 23 |
| 4 Jul after | 29.9 °C | 30 % | 32 km/h | 0.0 mm | High 22 |
| 5 Jul after | 29.2 °C | 36 % | 37 km/h | 0.0 mm | High 25 |
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.
The smoke
CAMS · CopernicusOn 28 June 2017 the air beside the fire reached 20 µg/m³ of PM2.5. That day averaged 16: 1.1 times the WHO daily guideline (15).
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)
Other fires nearby
- 609 haSanta Domenica TalaoSeptember 2025 · 2 days · 11 km away
- 499 haSanta Domenica Talao4 August 2021 · 2 days · 12 km away
- 643 haSanta Domenica TalaoJuly 2017 · 3 days · 13 km away
- 538 haSanta Domenica TalaoAugust 2023 · 2 days · 13 km away
- 518 haTortora16 July 2017 · 4 days · 25 km away
- 631 haMorano CalabroJuly 2026 · 3 days · 28 km away
Frequently asked questions
- How long did the Grisolia fire last?
- Copernicus dates it between 22 June 2017 and 25 June 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 291 hectares (2.9 km²). Official national figures may differ.
- Which municipalities burned?
- The fire entered 3 municipalities: Grisolia (254 ha, 5.0 %); Santa Maria del Cedro (35 ha, 1.9 %); Maierà (2 ha, 0.1 %).
- Did the fire reach a town?
- The closest fire to a town centre came within 0.4 km of Maierà. 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 27.9 °C, humidity dropped to 58 % and gusts hit 31 km/h. The fire danger index (FWI) reached 9, class Low.
- 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
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 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.