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1989 Loma Prieta earthquake generated thousands of landslides

October 1989 (approx.)

Detailed Description

Aerial view of slide at Daly City. This is the largest slide triggered by the earthquake in San Mateo County, displacing approximately 36,700 cubic meters (48,000 cubic yards) of material. The base is about 152 m (500 ft) across at its widest point.