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Izium fire, 11 June 2025 Ізюмський район · Izium

Out · last detection 11 Jun 2025, 23:07 UTC

The fire started on 11 June 2025 in Izium, Ukraine, and satellites saw it burning for 2 days. Copernicus mapped a burnt perimeter of 141 hectares from satellite imagery, spread across a single municipality.

It is the 333th largest in Kharkiv Oblast since 2016 (of 558 with a page). Number 950 in Ukraine in 2025, of 1359.

Burnt area
141ha
Copernicus perimeter
Duration
2days
11 Jun 2025 – 12 Jun 2025
Municipalities hit
1
districts
Started on
11 Jun
2025
Heat detections
15
in a single hotspot: 32 MW
Danger at start
25
High · FWI index
Energy released
146MW
sum of detected power

Where it burned

HOTSPOTS BY DAY 11 Jun12 Jun

How it evolved, day by day

11

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

The weather it burned in

26°high
40km/h · peak gust
21%lowest humidity

It had gone 6 days without rain (1 mm or more) when it started. Rain came after the fire: 2.5 mm on 13 Jun.

This area had burned before

17% of the perimeter overlaps earlier fires recorded since 2016: 24 ha in 2022.

What happened to each town

  1. Izium Ізюмський район 17,029 inhabitants · 28.4 km from the town where it started
    141 ha reached on 11 Jun
    0.1 %

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

  • Coniferous forest86 %
  • Mixed forest12 %
  • Other natural land1.4 %

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)
11 Jun 25.7 °C 21 % 23 km/h 0.0 mm High 25
12 Jun 25.0 °C 33 % 40 km/h 0.2 mm High 29
13 Jun after 21.5 °C 44 % 50 km/h 2.5 mm Low 10

Before and after, from space

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

Before · 4 Jun 2025
After · 19 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 9 June 2025 the air beside the fire reached 13 µg/m³ of PM2.5, but no daily average passed the WHO guideline (15).

PM2.5 peak13 µg/m³
Days over the guideline0 days
PM1018 µg/m³
Optical depth0.81
9101112131415
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 · 15Every 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 Ukraine ›

Frequently asked questions

How long did the Izium fire last?
Copernicus dates it between 11 June 2025 and 12 June 2025: 2 days between the first and last image with fire.
How much area did it burn?
The perimeter Copernicus measured from satellite imagery is 141 hectares (1.4 km²). Official national figures may differ.
Which municipalities burned?
The fire only entered Izium (141 ha, 0.1 %).
Did the fire reach a town?
The closest fire to a town centre came within 28.4 km of Izium. 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 25.7 °C, humidity dropped to 21 % and gusts hit 40 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 Ukraine (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: 101 · 112

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
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 101 · 112.

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 (Public Domain). 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.