However the 1906 San Francisco earthquake seems to have been the exception to this correlation because the plate movement was moved mostly from south to north and it was not preceded by a major quake in the Cascadia zone.
Porén, o terremoto de San Francisco de 1906 parece ser unha excepción a esta correlación porque o movemento da placa produciuse principalmente de sur a norte e non foi precedido por un terremoto importante na zona de Cascadia.