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Pekan fire, 9 August 2024 Pekan

Out · last detection 15 Aug 2024, 06:01 UTC

The fire started on 9 August 2024 in Pekan, Malaysia, and satellites saw it burning for 7 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 515 hectares from heat detections, spread across a single municipality.

It is the 101th largest in Pahang since 2016 (of 107 with a page). Number 44 in Malaysia in 2024, of 48.

The power measured by the satellite is low (16.5 MW in the strongest hotspot), more typical of grass or stubble burning, or a slow surface fire, than of a large crown fire.

Burnt area
515ha
GWIS perimeter (Copernicus)
Duration
7days
9 Aug 2024 – 15 Aug 2024
Municipalities hit
1
districts
Started on
9 Aug
2024
Heat detections
26
in a single hotspot: 16 MW
Danger at start
0
Very low · FWI index
Energy released
108MW
sum of detected power

Where it burned

15 Aug 2024
HOTSPOTS BY DAY 9 Aug15 Aug

How it evolved, day by day

9101215

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

The weather it burned in

33°high
30km/h · peak gust
62%lowest humidity

It had gone 0 days without rain (1 mm or more) when it started. Rain came after the fire: 12.9 mm on 16 Aug.

This area had burned before

90% of the perimeter overlaps earlier fires recorded since 2016: 920 ha in 2019. Part of it burned more than once, so the yearly figures add up to more than the 463 ha that had burned before.

What happened to each town

  1. Pekan where it started
    518 ha reached on 9 Aug
    0.1 %

Burnt area inside each municipality, from crossing the GWIS perimeter with administrative boundaries. The distance is from the town centre to the nearest fire: staying a kilometre away does not mean it reached the houses.

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)
9 Aug 30.8 °C 73 % 28 km/h 11.1 mm Very low 0
10 Aug 32.9 °C 66 % 22 km/h 3.8 mm Very low 0
11 Aug 30.2 °C 70 % 30 km/h 11.4 mm Very low 0
12 Aug 32.7 °C 62 % 30 km/h 4.5 mm Very low 0
13 Aug 31.1 °C 75 % 28 km/h 1.3 mm Very low 0
14 Aug 29.7 °C 75 % 27 km/h 4.3 mm Very low 0
15 Aug 32.7 °C 69 % 21 km/h 1.0 mm Very low 0
16 Aug after 32.9 °C 65 % 30 km/h 12.9 mm Very low 0

Before and after, from space

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

Before · 2 Aug 2024
After · 22 Aug 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 17 August 2024 the air beside the fire reached 98 µg/m³ of PM2.5. That day averaged 56: 3.7 times the WHO daily guideline (15).

PM2.5 peak98 µg/m³
Days over the guideline11 days
PM10141 µg/m³
Optical depth1.95
789101112131415161718
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 · 26Every 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 Malaysia ›

Frequently asked questions

How long did the Pekan fire last?
GWIS (Copernicus) dates it between 9 August 2024 and 15 August 2024: 7 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 515 hectares (5.2 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Pekan (518 ha, 0.1 %).
What was the weather like?
During the fire the temperature reached 32.9 °C, humidity dropped to 62 % and gusts hit 30 km/h. The fire danger index (FWI) reached 0, class Very low.
Where does this data come from?
From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Malaysia (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: 999

Satellite cross-check

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
What do you think is wrong?

We will only use your email to reply about this report. Privacy. This is not an emergency service: if there is a fire now, call 999.

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 License). 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.