Question: when was the worst earthquake in san francisco
Answer: 1906 San Francisco earthquake Eureka Dunsmuir Chico Truckee Santa Rosa Salinas Bakersfield Fresno Paso Robles Santa Monica Indio UTC time 1906 - 04 - 18 13 : 12 : 27 ISC event 16957905 USGS - ANSS ComCat Local date April 18 , 1906 ( 1906 - 04 - 18 ) Local time 05 : 12 a.