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Today is the 102nd anniversity of the 1906 quake in San Fran. After this quake San Fran lost its place as the premier city on the left ocast and LA grew.
What would be the effects on the West Coast and the US if there had been no 1906 quake or even a minor 4.0 one? How would it have effected WWII the US effort against the Japanese with the better harbor and presumably larger city in SF?