GeoDisk
GeoDisk[loc, r] is a two-dimensional GeoGraphics primitive that represents a filled disk of radius r centered at the location loc on the surface of the Earth.
GeoDisk[loc, r, {α1, α2}]gives a sector of a disk from bearingα1to bearingα2.
Examples
GeoGraphics[GeoDisk[Entity["City", {"Tokyo", "Tokyo", "Japan"}], Quantity[200, "Kilometers"]]]GeoGraphics[GeoDisk[Here, Quantity[100, "Miles"], {0, 180}]]Please visit the official Wolfram Language Reference for more details.