Seismic studies indicate a linear trend of hypocenters to the northwest of Cerro Prieto which is interpreted as a continuation of the Cerro Prieto Fault some 45 km to the northwest across the international border about 7 km into southern California.Magistrale, Harold, The relation of the southern San Jacinto fault zone to the Imperial and Cerro Prieto faults in Contributions to Crustal Evolution of the Southwestern United States, GSA Special Paper 365, 2002, pp. 271-278
