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Huma County fire, October 2023 Huma County

Out · last measured on 24 Oct 2023

The fire started on 24 October 2023 in Huma County, China, and satellites saw it burning for 1 day. Copernicus’s global GWIS system rebuilt a burnt perimeter of 1,309 hectares from heat detections, spread across a single municipality.

It is the 1122th largest in Heilongjiang Province since 2016 (of 1751 with a page). Number 164 in China in 2023, of 280.

We have the GWIS perimeter for this fire, but the VIIRS sensors did not capture it in enough detail: no day-by-day evolution, but the split by municipality is there.

Burnt area
1,309ha
GWIS perimeter (Copernicus)
Duration
1day
24 Oct 2023 – 24 Oct 2023
Municipalities hit
1
counties
Started on
24 Oct
2023
Danger at start
8
Low · FWI index

Where it burned

The weather it burned in

10°high
23km/h · peak gust
35%lowest humidity

It had gone 5 days without rain (1 mm or more) when it started. Rain came after the fire: 1.0 mm on 25 Oct.

This area had burned before

18% of the perimeter overlaps earlier fires recorded since 2016: 239 ha in 2017.

What happened to each town

  1. Huma County where it started
    1,291 ha
    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)
24 Oct 9.9 °C 35 % 23 km/h 0.0 mm Low 8
25 Oct after 8.9 °C 46 % 36 km/h 1.0 mm Very low 4

Before and after, from space

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

Before · 17 Oct 2023
After · 31 Oct 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.

The smoke

CAMS · Copernicus

On 24 October 2023 the air beside the fire reached 667 µg/m³ of PM2.5. That day averaged 254: 17 times the WHO daily guideline (15).

PM2.5 peak667 µg/m³
Days over the guideline4 days
PM10954 µg/m³
Optical depth2.37
222324252627
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)

Other fires nearby

All fires in China ›

Frequently asked questions

How long did the Huma County fire last?
GWIS (Copernicus) dates it between 24 October 2023 and 24 October 2023: 1 day 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 1,309 hectares (13.1 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Huma County (1,291 ha, 0.1 %).
What was the weather like?
During the fire the temperature reached 9.9 °C, humidity dropped to 35 % and gusts hit 23 km/h. The fire danger index (FWI) reached 8, class Low.
Where does this data come from?
From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of China (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: 119

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 119.

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 (Open Data Commons Open Database License 1.0). 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.