Nuclear power plant can withstand earthquakes, NRC finds

The Nuclear Regulatory Commission’s (NRC) latest analysis of faults near the two-unit, 2,300 MW Diablo Canyon nuclear power plant in California continues to conclude the plant’s design would withstand earthquakes near the site, the federal regulators said on Oct. 12.

The NRC’s work is laid out in Research Information Letter (RIL), “Confirmatory Analysis Of Seismic Hazard At The Diablo Canyon Power Plant From The Shoreline Fault Zone.” The RIL focuses on the latest identified source, the “Shoreline fault” about a kilometer offshore from the plant, the NRC said.

Pacific Gas & Electric (PG&E, NYSE: PCG), operator of the plant 12 miles southwest of San Luis Obispo, Calif., notified the NRC in November 2008 about the Shoreline fault. PG&E updated that information in early 2011, and a team of NRC staff visited the site in October 2011.

Based on the available information and the site visit, the NRC team analyzed ground motion from earthquakes the Shoreline fault could potentially generate. All of those ground motions fell within Diablo Canyon’s existing design limits, which are based on ground motion associated with an earthquake from the larger Hosgri fault near the plant.

Diablo Canyon must continue to carry out additional earthquake evaluations, as well as a “walkdown” to identify any near-term actions for enhancing earthquake resistance.

Subscribe to Nuclear Power International magazine

Did You Like this Article? Get All the Energy Industry News Delivered to Your Inbox

Subscribe to an email newsletter today at no cost and receive the latest news and information.

 Subscribe Now


Logistics Risk Management in the Transformer Industry

Transformers often are shipped thousands of miles, involving multiple handoffs,and more than a do...

Secrets of Barco UniSee Mount Revealed

Last year Barco introduced UniSee, a revolutionary large-scale visualization platform designed to...

The Time is Right for Optimum Reliability: Capital-Intensive Industries and Asset Performance Management

Imagine a plant that is no longer at risk of a random shutdown. Imagine not worrying about losing...

Going Digital: The New Normal in Oil & Gas

In this whitepaper you will learn how Keystone Engineering, ONGC, and Saipem are using software t...