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Pakbeng fire, 31 March 2024 Pakbeng, Pha Oudom

Out · last detection 11 Apr 2024, 07:09 UTC

The fire started on 31 March 2024 in Pakbeng, Laos, and satellites saw it burning for 12 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 2,455 hectares from heat detections, spread across 2 municipalities.

It is the 177th largest in Oudomxay since 2016 (of 239 with a page). Number 74 in Laos in 2024, of 113.

Compare with…
Burnt area
2,455ha
GWIS perimeter (Copernicus)
Duration
12days
31 Mar 2024 – 11 Apr 2024
Municipalities hit
2
districts
Started on
31 Mar
2024
Heat detections
74
in a single hotspot: 230 MW
Danger at start
21
Moderate · FWI index
Average daily power
518MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 31 Mar11 Apr
11 Apr 2024

How it evolved, day by day

31 Mar 2024 · 2,090 MW · 29 1 Apr 2024 · 1,428 MW · 15 2 Apr 2024 · 88 MW · 9 4 Apr 2024 · 390 MW · 7 5 Apr 2024 · 128 MW · 10 8 Apr 2024 · 14 MW · 2 9 Apr 2024 · 3 MW · 1 11 Apr 2024 · 8 MW · 1
31 Mar 2 Apr 5 Apr 9 Apr

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

The weather it burned in

38°high
38km/h · peak gust
27%lowest humidity

It had gone 8 days without rain (1 mm or more) when it started. Rain came after the fire: 2.2 mm on 15 Apr.

This area had burned before

71% of the perimeter overlaps earlier fires recorded since 2016: 383 ha in 2016, 640 ha in 2017, 655 ha in 2020, 1,063 ha in 2022, 847 ha in 2023. Part of it burned more than once, so the yearly figures add up to more than the 1,755 ha that had burned before.

How big is it?

10 km
It burned the equivalent of 1.6% of the area of London (25 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. Pakbeng where it started
    2,467 ha
    1.9 %
  2. 0 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 area0.57 ha
Residents≈ 900

Inside the perimeter there were about 0.57 hectares of built-up land and about 900 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

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)
31 Mar 34.8 °C 32 % 35 km/h 0.0 mm Moderate 21
1 Apr 35.3 °C 27 % 37 km/h 0.0 mm High 24
2 Apr 35.3 °C 30 % 36 km/h 0.0 mm High 25
3 Apr 35.7 °C 31 % 35 km/h 0.0 mm High 26
4 Apr 36.1 °C 33 % 32 km/h 0.0 mm High 26
5 Apr 36.1 °C 31 % 30 km/h 0.0 mm High 26
6 Apr 36.8 °C 36 % 27 km/h 0.0 mm High 26
7 Apr 36.5 °C 36 % 31 km/h 0.0 mm High 27
8 Apr 36.1 °C 42 % 23 km/h 0.0 mm High 23
9 Apr 37.7 °C 35 % 38 km/h 0.4 mm High 25
10 Apr 33.0 °C 49 % 28 km/h 1.4 mm Low 11
11 Apr 36.0 °C 38 % 22 km/h 0.8 mm Moderate 18
12 Apr after 34.5 °C 44 % 32 km/h 0.7 mm Moderate 18
13 Apr after 36.4 °C 34 % 30 km/h 0.0 mm High 25
14 Apr after 35.2 °C 38 % 31 km/h 0.4 mm High 26
15 Apr after 35.4 °C 37 % 30 km/h 2.2 mm Moderate 14

Before and after, from space

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

Before · 24 Mar 2024
After · 18 Apr 2024

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 8 April 2024 the air beside the fire reached 247 µg/m³ of PM2.5. That day averaged 123: 8.2 times the WHO daily guideline (15).

PM2.5 peak247 µg/m³
Days over the guideline17 days
PM10357 µg/m³
Optical depth2.30
2930311234567891011121314
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 · 74Every 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 Pakbeng fire last?
According to the heat detections seen by satellite inside the perimeter, it burned from 31 March 2024 to 11 April 2024 (12 days). The perimeter dates it from 31 March 2024 to 5 April 2024.
How much area did it burn?
The perimeter GWIS (Copernicus) rebuilt from heat detections is 2,455 hectares (24.6 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire entered 2 municipalities: Pakbeng (2,467 ha, 1.9 %); Pha Oudom (0 ha, 0.0 %).
What was the weather like?
During the fire the temperature reached 37.7 °C, humidity dropped to 27 % and gusts hit 38 km/h. The fire danger index (FWI) reached 27, class High.
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 adjusted with the VIIRS detections inside the perimeter, which said 31 March 2024 to 5 April 2024. 74 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 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.