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Demoso fire, February 2026 Demoso, Loikaw

Out · last detection 20 Feb 2026, 18:54 UTC

The fire started on 10 February 2026 in Demoso, Myanmar, and satellites saw it burning for 11 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 8,013 hectares from heat detections, spread across 2 municipalities.

It is the 27th largest in Kayah since 2016 (of 209 with a page). Number 68 in Myanmar in 2026, of 480.

Compare with…
Burnt area
8,013ha
GWIS perimeter (Copernicus)
Duration
11days
10 Feb 2026 – 20 Feb 2026
Municipalities hit
2
municipalities
Started on
10 Feb
2026
Heat detections
134
in a single hotspot: 87 MW
Danger at start
25
High · FWI index
Average daily power
103MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 10 Feb20 Feb
20 Feb 2026

How it evolved, day by day

11 Feb 2026 · 4 MW · 2 12 Feb 2026 · 7 MW · 2 13 Feb 2026 · 10 MW · 7 14 Feb 2026 · 25 MW · 8 15 Feb 2026 · 140 MW · 18 16 Feb 2026 · 573 MW · 47 17 Feb 2026 · 167 MW · 28 18 Feb 2026 · 41 MW · 9 19 Feb 2026 · 53 MW · 10 20 Feb 2026 · 12 MW · 3
11 Feb 13 Feb 15 Feb 16 Feb 17 Feb 19 Feb

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

The weather it burned in

37°high
26km/h · peak gust
24%lowest humidity

It had gone more than two months without rain (1 mm or more) when it started. Rain came after the fire: 1.6 mm on 21 Feb.

This area had burned before

96% of the perimeter overlaps earlier fires recorded since 2016: 3,150 ha in 2016, 4,320 ha in 2017, 3,617 ha in 2019, 4,362 ha in 2020, 2,383 ha in 2021, 958 ha in 2022, 2,639 ha in 2024, 3,580 ha in 2025. Part of it burned more than once, so the yearly figures add up to more than the 7,691 ha that had burned before.

How big is it?

10 km
It burned the equivalent of 5.1% of the area of London (80 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. Demoso where it started
    4,499 ha reached on 11 Feb
    3.7 %
  2. 3,546 ha reached on 15 Feb
    2.3 %

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 area< 0.1 ha
Residents< 20

Inside the perimeter there was no noticeable built-up land and almost nobody lived there (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)
10 Feb 34.5 °C 42 % 20 km/h 0.0 mm High 25
11 Feb 35.8 °C 37 % 23 km/h 0.0 mm High 26
12 Feb 36.4 °C 31 % 26 km/h 0.0 mm High 27
13 Feb 36.4 °C 28 % 23 km/h 0.0 mm High 30
14 Feb 36.0 °C 27 % 26 km/h 0.0 mm High 30
15 Feb 36.2 °C 27 % 24 km/h 0.0 mm High 30
16 Feb 36.3 °C 24 % 20 km/h 0.0 mm High 32
17 Feb 37.3 °C 29 % 22 km/h 0.0 mm High 31
18 Feb 36.1 °C 40 % 24 km/h 0.0 mm High 30
19 Feb 36.2 °C 43 % 23 km/h 0.2 mm High 26
20 Feb 36.3 °C 41 % 22 km/h 0.9 mm Moderate 20
21 Feb after 34.7 °C 45 % 30 km/h 1.6 mm Moderate 15

Before and after, from space

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

Before · 3 Feb 2026
After · 27 Feb 2026

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 18 February 2026 the air beside the fire reached 66 µg/m³ of PM2.5. That day averaged 47: 3.2 times the WHO daily guideline (15).

PM2.5 peak66 µg/m³
Days over the guideline12 days
PM1068 µg/m³
Optical depth0.75
91011121314151617181920212223
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 · 134Every 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 Myanmar ›

Frequently asked questions

How long did the Demoso fire last?
According to the heat detections seen by satellite inside the perimeter, it burned from 10 February 2026 to 20 February 2026 (11 days). The perimeter dates it from 11 February 2026 to 20 February 2026.
How much area did it burn?
The perimeter GWIS (Copernicus) rebuilt from heat detections is 8,013 hectares (80.1 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire entered 2 municipalities: Demoso (4,499 ha, 3.7 %); Loikaw (3,546 ha, 2.3 %).
What was the weather like?
During the fire the temperature reached 37.3 °C, humidity dropped to 24 % and gusts hit 26 km/h. The fire danger index (FWI) reached 32, class High.
Where does this data come from?
From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Myanmar (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 · 1 Changes in area, dates, name, official record or merged pages, compared every night since 24 October 2026.
  1. Start date: 11 February 2026 → 10 February 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 11 February 2026 to 20 February 2026. 134 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 ADM3 (Creative Commons Attribution 4.0 (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.