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Mongmit fire, February 2025 Mongmit, Mabein

Out · last detection 11 Mar 2025, 18:34 UTC

The fire started on 23 February 2025 in Mongmit, Myanmar, and satellites saw it burning for 16 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 4,563 hectares from heat detections, spread across 2 municipalities.

It is the 187th largest in Shan since 2016 (of 806 with a page). Number 33 in Myanmar in 2025, of 135.

Compare with…
Burnt area
4,563ha
GWIS perimeter (Copernicus)
Duration
16days
23 Feb 2025 – 10 Mar 2025
Municipalities hit
2
municipalities
Started on
23 Feb
2025
Heat detections
165
in a single hotspot: 62 MW
Danger at start
22
High · FWI index
Average daily power
51MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 23 Feb10 Mar
11 Mar 2025

How it evolved, day by day

24 Feb 2025 · 43 MW · 10 25 Feb 2025 · 155 MW · 12 26 Feb 2025 · 52 MW · 17 27 Feb 2025 · 76 MW · 27 28 Feb 2025 · 22 MW · 7 1 Mar 2025 · 4 MW · 1 2 Mar 2025 · 121 MW · 16 3 Mar 2025 · 103 MW · 11 4 Mar 2025 · 93 MW · 20 5 Mar 2025 · 65 MW · 16 6 Mar 2025 · 1 MW · 1 7 Mar 2025 · 1 MW · 2 8 Mar 2025 · 54 MW · 7 9 Mar 2025 · 6 MW · 4 10 Mar 2025 · 7 MW · 3 11 Mar 2025 · 15 MW · 7
24 Feb 25 Feb 27 Feb 2 Mar 5 Mar 8 Mar 11 Mar

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
36km/h · peak gust
24%lowest humidity

It had gone more than two months without rain (1 mm or more) when it started.

This area had burned before

85% of the perimeter overlaps earlier fires recorded since 2016: 586 ha in 2016, 1,328 ha in 2020, 2,156 ha in 2021, 1,698 ha in 2022, 1,697 ha in 2024. Part of it burned more than once, so the yearly figures add up to more than the 3,892 ha that had burned before.

How big is it?

10 km
It burned the equivalent of 2.9% of the area of London (46 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. Mongmit where it started
    4,407 ha
    1.6 %
  2. 179 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 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)
23 Feb 31.2 °C 35 % 26 km/h 0.0 mm High 22
24 Feb 31.8 °C 37 % 26 km/h 0.0 mm High 22
25 Feb 32.5 °C 42 % 19 km/h 0.0 mm High 22
26 Feb 32.4 °C 33 % 27 km/h 0.0 mm High 24
27 Feb 33.0 °C 31 % 23 km/h 0.0 mm High 24
28 Feb 33.6 °C 34 % 24 km/h 0.0 mm High 24
1 Mar 34.1 °C 35 % 26 km/h 0.0 mm High 25
2 Mar 36.8 °C 24 % 36 km/h 0.1 mm High 34
3 Mar 33.4 °C 35 % 22 km/h 0.0 mm High 28
4 Mar 32.9 °C 39 % 25 km/h 0.0 mm High 26
5 Mar 33.4 °C 29 % 22 km/h 0.0 mm High 26
6 Mar 33.6 °C 31 % 26 km/h 0.0 mm High 27
7 Mar 34.4 °C 27 % 31 km/h 0.0 mm High 31
8 Mar 34.9 °C 26 % 28 km/h 0.0 mm High 31
9 Mar 34.9 °C 27 % 24 km/h 0.0 mm High 29
10 Mar 35.2 °C 30 % 27 km/h 0.0 mm High 31
11 Mar after 35.0 °C 29 % 25 km/h 0.0 mm High 30
12 Mar after 35.3 °C 30 % 27 km/h 0.0 mm High 32
13 Mar after 34.3 °C 31 % 24 km/h 0.0 mm High 32
14 Mar after 36.1 °C 26 % 31 km/h 0.0 mm High 32
15 Mar after 36.9 °C 25 % 23 km/h 0.0 mm High 33
16 Mar after 38.8 °C 23 % 27 km/h 0.0 mm High 36
17 Mar after 39.4 °C 22 % 42 km/h 0.0 mm Very high 43
18 Mar after 37.3 °C 28 % 31 km/h 0.0 mm Very high 39
19 Mar after 37.2 °C 28 % 30 km/h 0.0 mm High 38
20 Mar after 36.8 °C 28 % 26 km/h 0.0 mm High 37

Before and after, from space

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

Before · 16 Feb 2025
After · 17 Mar 2025

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 12 March 2025 the air beside the fire reached 121 µg/m³ of PM2.5. That day averaged 88: 5.8 times the WHO daily guideline (15).

PM2.5 peak121 µg/m³
Days over the guideline21 days
PM10130 µg/m³
Optical depth1.38
212223242526272812345678910111213
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 · 165Every 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 Mongmit fire last?
GWIS (Copernicus) dates it between 23 February 2025 and 10 March 2025: 16 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 4,563 hectares (45.6 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire entered 2 municipalities: Mongmit (4,407 ha, 1.6 %); Mabein (179 ha, 0.0 %).
What was the weather like?
During the fire the temperature reached 36.8 °C, humidity dropped to 24 % and gusts hit 36 km/h. The fire danger index (FWI) reached 34, 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 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; 2 polygons grouped in this page.
  • Dates from the perimeter: the VIIRS detections inside it did not change them. 165 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.