Sylmar Earthquake of 1971 natural disastersylmar Sep 9 Written By Greg Gonzalez History of the Sylmar earthquake of 1971.This is a segment from our episode "Our Own Fault." sylmarearthquake1971historysan fernando valley Greg Gonzalez
Sylmar Earthquake of 1971 natural disastersylmar Sep 9 Written By Greg Gonzalez History of the Sylmar earthquake of 1971.This is a segment from our episode "Our Own Fault." sylmarearthquake1971historysan fernando valley Greg Gonzalez