Ou Ya Dav fire, March 2022 Ou Ya Dav
The fire started on 7 March 2022 in Ou Ya Dav, Cambodia, and satellites saw it burning for 8 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 2,021 hectares from heat detections, spread across a single municipality.
It is the 77th largest in Ratanakiri since 2016 (of 79 with a page). Number 36 in Cambodia in 2022, of 37.
Compare with…
- Burnt area
- 2,021ha
- GWIS perimeter (Copernicus)
- Duration
- 8days
- 7 Mar 2022 – 14 Mar 2022
- Municipalities hit
- 1
- districts
- Started on
- 7 Mar
- 2022
- Heat detections
- 77
- in a single hotspot: 0 MW
- Average daily power
- 48MW
- detected power per day, on average
Where it burned
How it evolved, day by day
Fire radiative power detected each day, in megawatts, and number of hotspots. The magenta bar marks the peak day.
This area had burned before
100% of the perimeter overlaps earlier fires recorded since 2016: 735 ha in 2016, 1,285 ha in 2019, 1,697 ha in 2020, 1,353 ha in 2021. Part of it burned more than once, so the yearly figures add up to more than the 2,021 ha that had burned before.
- 1,515 ha Ou Ya Dav fire, March 2020 5,030 ha in total; the hectares shown are those it shares with this fire
- 1,129 ha Ou Ya Dav fire, March 2021 2,464 ha in total; the hectares shown are those it shares with this fire
- 1,036 ha Ou Ya Dav fire, February 2019 2,386 ha in total; the hectares shown are those it shares with this fire
How big is it?
London boundary: geoBoundaries · Office for National Statistics (Open Government Licence v3.0).
Paris boundary: geoBoundaries · Institut national de l'information géographique et forestière (IGN-F) (Etalab Open License 2.0).
Madrid boundary: geoBoundaries · Open Data ESRI, IGN Central Registry of Cartography Area (CC BY 4.0).
Berlin boundary: geoBoundaries · Federal Agency for Cartography and Geodesy (dl-de/by-2-0).
This compares size, not location: both shapes are at the same scale, north up, centred on each other.
What happened to each town
-
Ou Ya Dav where it started2,033 ha1.2 %
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 2020Inside the perimeter there was no noticeable built-up land and almost nobody lived there (GHSL 2020, 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.
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
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.
Detections table · 0Every satellite heat detection, one by one, with time, satellite, power and coordinates.
| Date and time | Satellite | FRP (MW) | Lat | Lon |
|---|
Other fires nearby
- 5,030 haOu Ya DavMarch 2020 · 14 days · 3 km away
- 3,725 haOu Ya DavJanuary 2026 · 23 days · 29 km away
- 3,860 haLumphatJanuary 2019 · 16 days · 33 km away
- 5,212 haLumphatFebruary 2017 · 17 days · 34 km away
- 4,958 haOu Ya Dav14 January 2016 · 22 days · 35 km away
- 4,672 haLumphat23 January 2016 · 25 days · 38 km away
Frequently asked questions
- How long did the Ou Ya Dav fire last?
- GWIS (Copernicus) dates it between 7 March 2022 and 14 March 2022: 8 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 2,021 hectares (20.2 km²). It is an estimate: official national figures may differ.
- Which municipalities burned?
- The fire only entered Ou Ya Dav (2,033 ha, 1.2 %).
- Where does this data come from?
- From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Cambodia (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.
Satellite cross-check
History of this page · 4 Changes in area, dates, name, official record or merged pages, compared every night since 24 October 2026.
- Last day with fire: 20 March 2022 → 14 March 2022.
- Start date: 28 February 2022 → 7 March 2022.
- Last day with fire: 14 March 2022 → 20 March 2022.
- Start date: 7 March 2022 → 28 February 2022.
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
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. No Suomi-NPP VIIRS detections on those dates.
- We have not matched this page with any official record.
- Built-up area and population come from the JRC Global Human Settlement Layer (epoch 2020, 100 m cells), summed inside the perimeter: an estimate of what was there, not a damage count.
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.