This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
FourState Tornado Swarm. meteorology en Locations of reported damage during the FourState Tornado Swarm of August Not all of these necessarily represent tornadoes and few individual tornadoes stuck multiple locations Locations from Grazulis Thomas July Significant Tornadoes Ludlum David McWilliams Early American Tornadoes census