If you are near the immediate fault line, then buried could be a problem. But that is a pretty insignificant amount of area.
There is no "fault line". There multiple fault zones. Three of the big ones, nearby, are the San Andreas, the Hayward, and the Calaveras. There are hundreds of smaller ones. -- Norman ~Oh Lord, why have you come ~To Konnyu, with the Lion and the Drum
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