The active fire map is a service offered and produced by NASA from data collected by satellites. The information collected is treated very quickly and made available to the public in a few hours. With all this we can know in a rather objective way the approximate place where a point of fire has occurred and the magnitude of it.
NASA's Resource Management Fire Information System (FIRMS) distributes active fire data in near real time, within 3 hours of satellite observation of the Moderate Resolution Imaging Spectroradiometer ( MODIS) and the Visible Infrared Image Radiometer Set (VIIRS).
MODIS is a sensor that works with a resolution of one pixel by 1km, instead VIIRS improves spatial resolution to 375m. In addition, the night performance is much higher.
Learn more at: https://earthdata.nasa.gov/firms
