Earthquake safety information available for Energy Northwest

By the Tri-City HeraldNovember 7, 2013 

Energy Northwest has made more information available on its web page about the earthquake safety of its nuclear power plant near Richland.

Last week, Physicians for Social Responsibility said the risk of an earthquake had been substantially underestimated when the plant was built three decades ago. The understanding of the seismic risk in Eastern Washington has advanced since then.

The Columbia Generating Station was built to withstand a 6.9-magnitude earthquake close to the plant, according to Energy Northwest. To learn more about earthquake risk in the area of the plant, Pacific Northwest National Laboratory has been leading an in-depth study paid for in part by Energy Northwest.

Energy Northwest is confident the nuclear plant has been built to safely shut down following any unlikely earthquake scenario, but if the PNNL study determines changes are needed, they will be made, said Mark Reddemann, Energy Northwest chief executive, in a statement.

Energy Northwest has posted more information at

Physicians for Social Responsibility also has posted information online to outline the basis of its concerns. Go to

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