Offbeat Tourist Spots You don’t have to go to Northern California in order to see redwoods. A substantial stand of trees estimated to be about seventy years old and ranging up to eighty feet tall ...
Geology of La Jolla. The Ardath Shale found on both sides of Interstate 5 near La Jolla is another clay-rich formation that may not tolerate severe shaking well.
Posted March 2, 2000
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San Diego overview — just the facts
San Diego Earthquake Danger Zones
“All river valleys are suspect,” she says — Mission Valley, the Sweetwater River Valley, the Otay River Valley, the Tijuana River Valley. “If you are in the Mission Valley area, have a high potential for liquefaction.”