I lived twenty-plus years in Sonoma County California, Santa Rosa, to be exact. As an emigrant from Oregon, I eventually realized that a crack in the wall or a sticking — and later unsticking — door was the normal. Earthquakes occur literally every day; most are felt only by scientific seismic equipment. In my two decades I felt only several. The most severe woke me early one morning in 2014. That one did most of its damage to the town of Napa, about thirty-five miles away.
Santa Rosa lies just east of the San Andreas Fault line (magnitude 7.6 in 1906 and) and right on top of the Hayward/Rodgers Creek Fault system (magnitude 5.6 and 5.7 in 1969). San Andreas follows the west — SanFrancisco — side of San Francisco Bay; Hayward/Rodgers Creek the east — Oakland — side of the Bay.
