ca earthquake picture 002

Imperial Valley California Earthquake October 15 1979 Rupture or mole track on the Imperial Fault in a field south of Heber Road 2 4 kilometers northwest of the southeast end of the

Imperial Valley California Earthquake October 15 1979 Rupture or mole track on the Imperial Fault in a field south of Heber Road 2 4 kilometers northwest of the southeast end of the

Imperial Valley California Earthquake October 15 1979 Rupture or mole track on the Imperial Fault in a field south of Heber Road 2 4 kilometers northwest of the southeast end of the