<Tr> <Td_colspan="2"> Buildings collapsed as a result of the earthquake </Td> </Tr> <Tr> <Td_colspan="2"> Los Angeles Las Vegas </Td> </Tr> <Tr> <Th> Date </Th> <Td> January 17, 1994 (1994 - 01 - 17) </Td> </Tr> <Tr> <Th> Origin time </Th> <Td> 4: 30: 55 a.m. PST </Td> </Tr>

When was the last significant earthquake in california
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