TIME October 15, 1979 / 4:54 pm PDT
LOCATION 32° 37' N, 115° 19' W about 29 km (18 miles) southeast of
MAGNITUDE Mw6.4
TYPE OF FAULTING right-lateral strike-slip
FAULTS RUPTURED Imperial (main and North Extension), Brawley, and Rico faults
RUPTURE LENGTH 30 km of the Imperial fault zone,
Strike-slip offset of 57 centimeters on a canal on the
Imperial Fault. The concrete patch
over the broken area has already been cracked by post-earthquake slip.
(Photo: Robert E. Wallace)
REFERENCES