Darn, That's A Lot

From the Reno Gazette Journal:
More than 17,500 earthquakes were recorded in 2015 by the University of Nevada, Reno’s Nevada Seismological Laboratory.
That includes the 231 recent quakes in South Reno and the magnitude 4.8 in Caliente that shook Las Vegas in January 2015, according to a Thursday.
 The biggest source of shakes is the so-called Sheldon sequence in far northwest Nevada, according to the seismological lab.
In 2015 there were 4,511 earthquakes recorded in the remote Sheldon Wildlife Refuge near Vya, east of Cedarville, Calif.
Other quake-prone areas in 2015 were Caliente, Carson City and Virginia City.  http://www.rgj.com/story/news/2015/12/31/wow-there-were-17500-nevada-earthquakes-2015/78138674/
That's over 47 earthquakes a day in Nevada.
Who would have thought?