<Table> 1989 Loma Prieta earthquake <Tr> <Td_colspan="2"> Image of collapsed double - decker freeway structure in Oakland, California </Td> </Tr> <Tr> <Td_colspan="2"> Santa Cruz Oakland Salinas </Td> </Tr> <Tr> <Th> Date </Th> <Td> October 17, 1989 (1989 - 10 - 17) </Td> </Tr> <Tr> <Th> Origin time </Th> <Td> 5: 04: 15 p.m. PDT </Td> </Tr> <Tr> <Th> Duration </Th> <Td> 8--15 seconds </Td> </Tr> <Tr> <Th> Magnitude </Th> <Td> 6.9 M </Td> </Tr> <Tr> <Th> Depth </Th> <Td> 12 mi (19 km) </Td> </Tr> <Tr> <Th> Epicenter </Th> <Td> 37 ° 02 ′ N 121 ° 53 ′ W ﻿ / ﻿ 37.04 ° N 121.88 ° W ﻿ / 37.04; - 121.88 Coordinates: 37 ° 02 ′ N 121 ° 53 ′ W ﻿ / ﻿ 37.04 ° N 121.88 ° W ﻿ / 37.04; - 121.88 </Td> </Tr> <Tr> <Th> Type </Th> <Td> Oblique - slip </Td> </Tr> <Tr> <Th> Areas affected </Th> <Td> Central Coast (California) San Francisco Bay Area United States </Td> </Tr> <Tr> <Th> Total damage </Th> <Td> $5.6--6 billion </Td> </Tr> <Tr> <Th> Max . intensity </Th> <Td> IX (Violent) </Td> </Tr> <Tr> <Th> Peak acceleration </Th> <Td> 0.65g (at epicenter) </Td> </Tr> <Tr> <Th> Tsunami </Th> <Td> Yes </Td> </Tr> <Tr> <Th> Landslides </Th> <Td> 1,000--4,000 </Td> </Tr> <Tr> <Th> Foreshocks </Th> <Td> 5.3 M June 27, 1988 5.4 M August 8, 1989 </Td> </Tr> <Tr> <Th> Casualties </Th> <Td> 63 killed, 3,757 injured </Td> </Tr> </Table> <Tr> <Td_colspan="2"> Image of collapsed double - decker freeway structure in Oakland, California </Td> </Tr>

San francisco earthquake 1989 how long did it last