This map is centered on our home and farm. There were 117 earthquakes reported by the USGS in 2013 with an epicenter within approximately 30 miles (48 km) of our home. (There have been more reported, but earthquakes centered on known gravel pits and indicating the movement is centered at the surface have been discarded as gravel pit blasting.) The stongest earthquake in 2013 was a 2.7 magnitude quake that occurred November 17. The most earthquakes in one day was 4 on November 15. There were 10 earthquakes over the November 15-17 three day period.
The markers used to show epicenters are sized relative to the size of the earthquake.
The markers are:
If your mouse hovers over a pushpin the date and magnitude of the quake will be displayed.
Oldest earthquakes are displayed first, so newer quake pegs may cover older quakes.
Purple rings indicate 10 mile (16km) distance from the farm.