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Figure 38. Damage at the Lower Van Norman Dam by the February 9, 1971, San Fernando, California, earthquake; view to the east. A massive slide into the reservoir broke off the east outlet tower and damaged the west outlet tower (foreground). No water overtopped the dam, and no leaks developed as a result of the shaking. More than 75,000 residents were evacuated from the area downstream for 3 days after the earthquake. (Photo by G. W. Thorsen)
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