sentences:  The Cristianitos fault (Cristianitos) runs northeast-southwest along Oso Creek, passing offshore south of the mouth of San Juan Creek.The Mission Viejo fault zone parallels the Cristianitos but ends much farther south, in San Diego County.The first recorded earthquake in the area partially destroyed Mission San Juan Capistrano in 1812 (which had been built only six years before), killing forty people in the adobe chapel when it collapsed.