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November 15, 2012

California utility wants to use air cannons to map the ocean's earthquake faults near nuke plant

  • Opponents say more than 7,000 sea mammals would be affected by the noise.
    AP Science Writer

    LOS ANGELES — California coastal regulators were set to weigh in Wednesday on a utility's contentious plan to map offshore earthquake faults near a nuclear power plant by blasting loud air cannons.

    Pacific Gas & Electric Co., which operates the Diablo Canyon facility, has proposed conducting a seismic survey that involves firing sonic pulses into the ocean. Sensors on the seafloor would pick up the echoes to create 3-D maps of geologic faults.

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