There's been a big earthquake show in the Sierra Nevada since Friday. According to my count there have been 826 quakes including a 4.9
http://pasadena.wr.usgs.gov/recenteqs/Quakes/ci09674049.htm
Almost all of the quakes are near Coso Junction on US-395 about 30 miles south of Lone Pine.
Here's a list of the quakes
http://quake.usgs.gov/recenteqs/Maps/118-36_eqs.htm
Here's a map:
http://quake.usgs.gov/recenteqs/Maps/118-36.htm
Here's a story:
http://www.signonsandiego.com/news/state/20010719-0427-sierraquake.html