The San Francisco Peninsula is home to the San Andreas Fault — seen here running beneath the reservoirs in the left of this northward view — along with more than 1.6 million people. Credit: Doc Searles (CC BY-SA 2.0).

The San Francisco Peninsula is home to the San Andreas Fault — seen here running beneath the reservoirs in the left of this northward view — along with more than 1.6 million people. Credit: Doc Searles (CC BY-SA 2.0).

The San Francisco Peninsula is home to the San Andreas Fault — seen here running beneath the reservoirs in the left of this northward view — along with more than 1.6 million people. Credit: Doc Searles (CC BY-SA 2.0).

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