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Paktha fire, March 2023 Paktha, Pakbeng

Out · last detection 7 Apr 2023, 18:37 UTC

The fire started on 24 March 2023 in Paktha, Laos, and satellites saw it burning for 15 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 6,011 hectares from heat detections, spread across 2 municipalities.

It is the 15th largest in Bokeo since 2016 (of 73 with a page). Number 49 in Laos in 2023, of 239.

Compare with…
Burnt area
6,011ha
GWIS perimeter (Copernicus)
Duration
15days
24 Mar 2023 – 7 Apr 2023
Municipalities hit
2
districts
Started on
24 Mar
2023
Heat detections
86
in a single hotspot: 0 MW
Average daily power
201MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 24 Mar7 Apr
7 Apr 2023

How it evolved, day by day

28 Mar 2023 · 18 MW · 5 29 Mar 2023 · 11 MW · 2 30 Mar 2023 · 209 MW · 7 31 Mar 2023 · 1,074 MW · 23 1 Apr 2023 · 177 MW · 2 2 Apr 2023 · 263 MW · 18 3 Apr 2023 · 323 MW · 11 4 Apr 2023 · 8 MW · 1 5 Apr 2023 · 106 MW · 11 6 Apr 2023 · 4 MW · 3 7 Apr 2023 · 22 MW · 3
28 Mar 30 Mar 31 Mar 1 Apr 3 Apr 5 Apr 7 Apr

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

This area had burned before

77% of the perimeter overlaps earlier fires recorded since 2016: 2,415 ha in 2016, 1,649 ha in 2017, 957 ha in 2018, 1,469 ha in 2019, 2,374 ha in 2020, 252 ha in 2021, 304 ha in 2022. Part of it burned more than once, so the yearly figures add up to more than the 4,640 ha that had burned before.

How big is it?

10 km
It burned the equivalent of 3.8% of the area of London (60 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. Paktha where it started
    6,025 ha
    6.7 %
  2. 15 ha
    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 area1.1 ha
Residents≈ 1,800

Inside the perimeter there were about 1.1 hectares of built-up land and about 1,800 residents (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

Before and after, from space

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

Before · 17 Mar 2023
After · 14 Apr 2023

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.
⬇ 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 Laos ›

Frequently asked questions

How long did the Paktha fire last?
GWIS (Copernicus) dates it between 24 March 2023 and 7 April 2023: 15 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 6,011 hectares (60.1 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire entered 2 municipalities: Paktha (6,025 ha, 6.7 %); Pakbeng (15 ha, 0.0 %).
Where does this data come from?
From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Laos (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 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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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 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 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.