Earthquakes on a Map(earthquake.usgs.gov)
earthquake.usgs.gov
Earthquakes on a Map
https://earthquake.usgs.gov/earthquakes/map/?extent=-82.2617,386.71875&extent=84.9901,856.40625
https://earthquake.usgs.gov/earthquakes/map/?extent=-82.2617,386.71875&extent=84.9901,856.40625
The bubbles get larger and turn red - the stronger the earthquake.