A Map of the Fiber-Optic Cable Array under the Monterey Bay (IMAGE)

DOE/Lawrence Berkeley National Laboratory

A Map of the Fiber-Optic Cable Array under the Monterey Bay

Caption

Researchers employed 20 kilometers (pink) of a 51-kilometer undersea fiber-optic cable, normally used to communicate with an off-shore science node (MARS, Monterey Accelerated Research System), as a seismic array to study the fault zones under Monterey Bay. During the four-day test, the scientists detected a magnitude 3.5 earthquake 45 kilometers away in Gilroy, and mapped previously uncharted fault zones (yellow circle).

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Nate Lindsey

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