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4.6-magnitude earthquake shakes Southern California on anniversary of deadly 1971 San Fernando quake
An earthquake with a preliminary magnitude of 4.6 struck the Southern California ... of the 1971 San Fernando earthquake, which was recorded as magnitude 6.6. Also known as the Sylmar earthquake ...
California hospitals scramble on earthquake retrofits as state limits extensions
The debate over how seismically safe California hospitals should be dates to the 1971 Sylmar quake near Los ... hospitals to ...