A 6.2 earthquake occurred on July 21 , 1986 in Bishop and Chalfant areas , and injured two people , causing damages estimated at $ 2.7 million . There was a foreshock before the initial quake and another aftershock occurred ten days after the initial temblor . Smaller aftershocks occurred through September 30 , 1986
6.2 earthquake
1986 Chalfant Valley earthquake
Chalfant, California