PG&E Quake Risks at Diablo Nuclear to Undergo 3D Exam

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PG&E Corp. and Edison International are embarking on the most extensive and costly study of earthquake risks ever undertaken for U.S. nuclear power plants using 3-D seismic technology pioneered by the oil industry.

The utilities plan to spend $128 million and use research gathered at sea to acquire a better understanding of seismic hazards at California’s two atomic plants built along the coast in the most earthquake-prone area of any U.S. reactors.