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Losacino fire, September 2017 Losacino, Losacio

Out · last measured on 10 Sept 2017

The fire started on 9 September 2017 in Losacino, Spain, and satellites saw it burning for 2 days. Copernicus mapped a burnt perimeter of 380 hectares from satellite imagery, spread across 2 municipalities.

It is the 18th largest in Zamora since 2016 (of 45 with a page). Number 67 in Spain in 2017, of 144.

Compare with…

Suggestions: Gallegos del Río · 2020Puercas · 2025Pino del Oro · 2017Losacio · 2022

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
380ha
Copernicus perimeter
Duration
2days
9 Sept 2017 – 10 Sept 2017
Municipalities hit
2
municipalities
Started on
9 Sept
2017
Danger at start
29
High · FWI index

Where it burned

The weather it burned in

25°high
30km/h · peak gust
28%lowest humidity

It had gone 10 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

  1. Losacino 189 inhabitants · 1.5 km from the centre where it started
    304 ha
    6.9 %
  2. Losacio 90 inhabitants · 1.0 km from the centre
    77 ha
    3.5 %

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

  • Sclerophyllous scrub51 %
  • Other natural land24 %
  • Agricultural areas20 %
  • Scrub and transitional woodland5.6 %

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

Official record

According to EGIF (MITECO), this fire started on 9 September 2017 and burned 527 ha (the satellite measured 380 ha). The two figures differ a lot, so these may not be exactly the same fire: take them as nearby records.

MITECO, Estadística General de Incendios Forestales (EGIF). This is the agency’s consolidated statistic: it measures the area in its own way, which is why it can differ from the satellite.

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)
10 Sept 24.7 °C 28 % 30 km/h 0.0 mm High 29
11 Sept after 26.7 °C 27 % 44 km/h 0.0 mm High 35
12 Sept after 23.8 °C 42 % 30 km/h 0.0 mm High 24
13 Sept after 28.1 °C 28 % 36 km/h 0.0 mm High 30
14 Sept after 23.3 °C 41 % 40 km/h 0.0 mm High 28
15 Sept after 19.3 °C 26 % 39 km/h 0.0 mm High 29
16 Sept after 19.8 °C 22 % 34 km/h 0.0 mm High 29
17 Sept after 20.9 °C 28 % 34 km/h 0.0 mm High 27
18 Sept after 20.9 °C 40 % 35 km/h 0.0 mm High 26
19 Sept after 23.6 °C 31 % 19 km/h 0.0 mm High 22
20 Sept after 26.5 °C 20 % 20 km/h 0.0 mm High 28

Before and after, from space

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

Before · 2 Sept 2017
After · 17 Sept 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 8 September 2017 the air beside the fire reached 14 µg/m³ of PM2.5, but no daily average passed the WHO guideline (15).

PM2.5 peak14 µg/m³
Days over the guideline0 days
PM1019 µg/m³
8910111213
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)

Other fires nearby

All fires in Spain ›

Frequently asked questions

How long did the Losacino fire last?
According to the heat detections seen by satellite inside the perimeter, it burned from 9 September 2017 to 10 September 2017 (2 days). The perimeter dates it from 10 September 2017 to 10 September 2017.
How much area did it burn?
The perimeter Copernicus measured from satellite imagery is 380 hectares (3.8 km²). Official national figures may differ.
Which municipalities burned?
The fire entered 2 municipalities: Losacino (304 ha, 6.9 %); Losacio (77 ha, 3.5 %).
Did the fire reach a town?
The fire came within 1.0 km of the centre of Losacio, 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 24.7 °C, humidity dropped to 28 % and gusts hit 30 km/h. The fire danger index (FWI) reached 29, class High.
Where does this data come from?
From the EFFIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Spain (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 · 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.

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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.

How we know this
  • Perimeter: EFFIS (Copernicus), mapped on satellite imagery.
  • Dates adjusted with the VIIRS detections inside the perimeter, which said 10 September 2017 to 10 September 2017. No Suomi-NPP VIIRS detections on those dates.
  • Compared with EGIF (MITECO): 527 official ha against 380 ha of perimeter; similar, but with reservations.
  • 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 ADM3 (Creative Commons Attribution 4.0 International (CC BY 4.0)). 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.