Strike-slip faulting has generally been considered insufficient for triggering large tsunamis, except through the generation of submarine landslides. ! 1906 — About 700 people were killed in San Francisco, California, when an earthquake was followed by about 30 fires that raged for three days. The 1906 San Francisco earthquake struck the coast of Northern California at 5:12 a.m. on Wednesday, April 18, with an estimated moment magnitude of 7.9 and a maximum Mercalli intensity of XI (Extreme). Such hazard parameters as … From Lander and Lockridge, 1989, Tsunami in Hawaii A magnitude 8.2 earthquake off the coast of Ecuador produced a 5-m local tsunami that destroyed 49 houses and killed 500 people in Colombia. Analysis of the tsunami provides confirming evidence that the 1906 San Francisco earthquake initiated at a right step in a right-lateral fault and propagated bilaterally, suggesting a rupture initiation mechanism similar to that for the 1995 Kobe earthquake. Introduction The 1906 San Francisco M w=7.8 earthquake is commonly considered a baseline event for defi ning earthquake hazards in the San Francisco Bay region (fi g. 1). High-intensity shaking was felt from Eureka on the North Coast to the Salinas Valley , an agricultural region to the south of the San Francisco Bay Area . We examine possible sources of a small tsunami produced by the 1906 San Francisco earthquake, recorded at a single tide gauge station situated at the opening to San Francisco Bay. San Francisco City Hall after the 1906 Earthquake. (from Steinbrugge Collection of the UC Berkeley Earthquake Engineering Research Center ) The California earthquake of April 18, 1906 ranks as one of the most significant earthquakes of all time. From Lander and Lockridge, 1989, Tsunami on west coast of United States For More Information. On April 18th in the early morning a M7.8 earthquake … An Unusual Tsunami Shortly after the Great San Francisco earthquake of April 18, 1906, a sea level disturbance (tsunami) was recorded at the Presidio tide gauge station in San Francisco (the station is now located nearby at Ft. Point). The 1906 earthquake didn’t just hit San Francisco. It was recorded at San Diego and San Francisco." 1933 — In Japan, the Sanriku earthquake and tsunami occur in a location that saw damaging quakes in 1896. It was an earthquake!! in the 1906 “San Francisco” Earthquake Crescent City • Eureka • Ferndale • Source: USGS Someday the northern San Andreas fault will rupture again, damaging buildings and cutting us off from the rest of the state for days or weeks. Coseismic vertical displacement fields were calculated using elastic dislocation theory for geodetically constrained horizontal slip along a variety of offshore fault geometries. ... A unified source model for the 1906 San Francisco earthquake. 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