Sa Thay fire, 28 March 2020 Sa Thay
The fire started on 28 March 2020 in Sa Thay, Vietnam, and satellites saw it burning for 14 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 2,226 hectares from heat detections, spread across a single municipality.
It is the 5th largest in Kon Tum since 2016 (of 31 with a page). Number 8 in Vietnam in 2020, of 40.
Compare with…
- Burnt area
- 2,226ha
- GWIS perimeter (Copernicus)
- Duration
- 14days
- 28 Mar 2020 – 10 Apr 2020
- Municipalities hit
- 1
- districts
- Started on
- 28 Mar
- 2020
- Heat detections
- 131
- in a single hotspot: 38 MW
- Average daily power
- 51MW
- 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
22% of the perimeter overlaps earlier fires recorded since 2016: 490 ha in 2016.
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
-
Sa Thay where it started2,237 ha reached on 28 Mar0.9 %
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.
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 · 131Every satellite heat detection, one by one, with time, satellite, power and coordinates.
| Date and time | Satellite | FRP (MW) | Lat | Lon |
|---|
Other fires nearby
- 3,900 haSa Thay6 April 2016 · 29 days · 6 km away
- 3,296 haSa Thay17 February 2020 · 16 days · 8 km away
- 2,986 haAndoung Meas16 March 2020 · 20 days · 21 km away
- 4,901 haAndoung MeasMarch 2026 · 40 days · 27 km away
- 4,959 haTa VeaengApril 2016 · 15 days · 33 km away
- 3,200 haAndoung Meas7 March 2021 · 17 days · 33 km away
Frequently asked questions
- How long did the Sa Thay fire last?
- According to the heat detections seen by satellite inside the perimeter, it burned from 28 March 2020 to 10 April 2020 (14 days). The perimeter dates it from 2 April 2020 to 5 April 2020.
- How much area did it burn?
- The perimeter GWIS (Copernicus) rebuilt from heat detections is 2,226 hectares (22.3 km²). It is an estimate: official national figures may differ.
- Which municipalities burned?
- The fire only entered Sa Thay (2,237 ha, 0.9 %).
- Where does this data come from?
- From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Vietnam (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: 114 · Emergency number and official warnings ›
Satellite cross-check
History of this page · 2 Changes in area, dates, name, official record or merged pages, compared every night since 24 October 2026.
- Last day with fire: 5 April 2020 → 10 April 2020.
- Start date: 2 April 2020 → 28 March 2020.
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 adjusted with the VIIRS detections inside the perimeter, which said 2 April 2020 to 5 April 2020. 131 Suomi-NPP VIIRS detections on those dates.
- We have not matched this page with any official record.
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 3.0 Intergovernmental Organisations (CC BY 3.0 IGO)). 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.