Day 1 Risk Area (sq. mi.) Area Pop. Some Larger Population Centers in Risk Area
SLIGHT 12,237 3,795,558 Sacramento, CA...Stockton, CA...Modesto, CA...Roseville, CA...Elk Grove, CA...
MARGINAL 38,588 9,687,602 San Jose, CA...San Francisco, CA...Fresno, CA...Oakland, CA...Fremont, CA...