FIRMS: Fire Information for Resource Management System (FIRMS)

The Earth Engine version of the Fire Information for Resource Management
System (FIRMS) dataset contains the LANCE fire detection product in
rasterized form. The near real-time (NRT) active fire locations are
processed by LANCE using the standard MODIS MOD14/MYD14 Fire and Thermal
Anomalies product. Each active fire location represents the centroid of a
1km pixel that is flagged by the algorithm as containing one or more fires
within the pixel. The data are rasterized as follows: for each FIRMS active
fire point, a 1km bouding box (BB) is defined; pixels in the MODIS
sinusoidal projection that intersect the FIRMS BB are identified; if
multiple FIRMS BBs intersect the same pixel, the one with higher confidence
is retained; in case of a tie, the brighter one is retained.

Additional information can be found here.