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Ashburton fire, 14 June 2025 Ashburton

Out · last detection 18 Jun 2025, 17:51 UTC

The fire started on 14 June 2025 in Ashburton, Australia, and satellites saw it burning for 5 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 5,367 hectares from heat detections, spread across a single municipality.

It is the 2477th largest in Western Australia since 2016 (of 2728 with a page). Number 1030 in Australia in 2025, of 1124.

Compare with…
Burnt area
5,367ha
GWIS perimeter (Copernicus)
Duration
5days
14 Jun 2025 – 18 Jun 2025
Municipalities hit
1
local government areas
Started on
14 Jun
2025
Heat detections
185
in a single hotspot: 93 MW
Danger at start
44
Very high · FWI index
Average daily power
291MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 14 Jun18 Jun
18 Jun 2025

How it evolved, day by day

14 Jun 2025 · 761 MW · 74 15 Jun 2025 · 101 MW · 19 16 Jun 2025 · 214 MW · 20 17 Jun 2025 · 308 MW · 63 18 Jun 2025 · 70 MW · 9
14 Jun 15 Jun 16 Jun 17 Jun 18 Jun

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

The weather it burned in

25°high
44km/h · peak gust
11%lowest humidity

It had gone 9 days without rain (1 mm or more) when it started.

This area had burned before

13% of the perimeter overlaps earlier fires recorded since 2016: 562 ha in 2016, 91 ha in 2020, 38 ha in 2021.

How big is it?

10 km
It burned the equivalent of 3.4% of the area of London (54 km² against 1,583 km²).

London boundary: geoBoundaries · Office for National Statistics (Open Government Licence v3.0).

This compares size, not location: both shapes are at the same scale, north up, centred on each other.

What happened to each town

  1. Ashburton where it started
    5,400 ha reached on 14 Jun
    0.0 %

Burnt area inside each municipality, from crossing the GWIS 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.

People and buildings inside the perimeter

GHSL 2025
Built-up area< 0.1 ha
Residents< 20

Inside the perimeter there was no noticeable built-up land and almost nobody lived there (GHSL 2025, satellite-based estimate).

This is an estimate on 100 m cells, made from satellite imagery and census data: it does not mean that homes burned or that anyone was harmed. The perimeter also contains land that never burned. The GHSL 2025 epoch is a projection made from 2020 and earlier data.

Source: Global Human Settlement Layer (GHS-BUILT-S and GHS-POP R2023A), European Commission Joint Research Centre (JRC), © European Union, CC BY 4.0. Sum inside the perimeter computed by WorldFires. human-settlement.emergency.copernicus.eu

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)
14 Jun 24.0 °C 12 % 38 km/h 0.0 mm Very high 44
15 Jun 25.0 °C 12 % 25 km/h 0.0 mm High 37
16 Jun 24.9 °C 11 % 36 km/h 0.0 mm Very high 43
17 Jun 24.9 °C 16 % 44 km/h 0.0 mm Very high 47
18 Jun 24.8 °C 15 % 36 km/h 0.0 mm Very high 46
19 Jun after 25.7 °C 12 % 29 km/h 0.0 mm Very high 41
20 Jun after 25.9 °C 15 % 31 km/h 0.0 mm Very high 41
21 Jun after 23.0 °C 36 % 40 km/h 0.0 mm Very high 40
22 Jun after 22.4 °C 17 % 41 km/h 0.0 mm Very high 44
23 Jun after 21.5 °C 19 % 45 km/h 0.0 mm Very high 44
24 Jun after 20.5 °C 20 % 51 km/h 0.0 mm Very high 48
25 Jun after 21.6 °C 19 % 50 km/h 0.0 mm Very high 47
26 Jun after 22.4 °C 15 % 45 km/h 0.0 mm Very high 46
27 Jun after 22.8 °C 16 % 48 km/h 0.0 mm Very high 49
28 Jun after 21.7 °C 19 % 55 km/h 0.0 mm Extreme 54

Before and after, from space

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

Before · 7 Jun 2025
After · 25 Jun 2025

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 15 June 2025 the air beside the fire reached 17 µg/m³ of PM2.5, but no daily average passed the WHO guideline (15).

PM2.5 peak17 µg/m³
Days over the guideline0 days
PM1018 µg/m³
Optical depth0.15
12131415161718192021
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 · 185Every 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 Australia ›

Frequently asked questions

How long did the Ashburton fire last?
GWIS (Copernicus) dates it between 14 June 2025 and 18 June 2025: 5 days between the first and last heat detection of the perimeter.
How much area did it burn?
The perimeter GWIS (Copernicus) rebuilt from heat detections is 5,367 hectares (53.7 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Ashburton (5,400 ha, 0.0 %).
What was the weather like?
During the fire the temperature reached 25.0 °C, humidity dropped to 11 % and gusts hit 44 km/h. The fire danger index (FWI) reached 47, class Very high.
Where does this data come from?
From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Australia (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: 000 · 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 000.

How we know this
  • Perimeter: GWIS (Copernicus), rebuilt from heat detections rather than mapped on imagery.
  • Dates from the perimeter: the VIIRS detections inside it did not change them. 185 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.
  • Built-up area and population come from the JRC Global Human Settlement Layer (epoch 2025, 100 m cells), summed inside the perimeter: an estimate of what was there, not a damage count.

How we build fire pages: methodology ›

Where this data comes from

The perimeter comes from the Copernicus Global Wildfire Information System (GWIS), which rebuilds it from MODIS and VIIRS heat detections and publishes it under CC BY 4.0. It is not measured on imagery as in Europe, so it is an estimate. 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 (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 from each country’s official figure.