Volume 84 Issue 4 | pp. 39-41
Issue Date: January 23, 2006

Seeking Chemical Clues To Earthquakes

Scientists are drilling miles into Earth to probe the chemistry and mechanics of the San Andreas Fault
Department: Science & Technology

On the surface, Parkfield, Calif., looks unremarkable. With a population of 18, the town consists of a few homes, a café, and a rustic inn with a sign urging visitors, "Sleep here when it happens."

What happens in Parkfield? Earthquakes. On a regular basis.

The town lies just east of the central California coast, smack dab on the San Andreas Fault, the boundary between tectonic plates that stretches 800 miles through the state. The fault . . .

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