March 11th, 2011 – Premonitions of North Anna EQ – Why does the NRC have confidence that an eq greater than DB cannot occur in the US

Author: No Comments Share:

From: Richards, Stuart
Sent: Friday, March 11, 2011 6:12 PM
To: Hogan, Rosemary; Graves, Herman; Kammerer, Annie; Murphy, Andrew
Cc: Case, Michael; Uhle, Jennifer
Subject: Follow-up to the Japanese Earthquake/Tsunami

Brian wants us to be prepared to answer questions on the earthquake/tsunami, particularly as it is related to US plants.

[quote]

For example:
– Was the ground motion at the Japanese sites beyond their design basis?
– Why do we have confidence that US nuclear power plants are adequately designed for earthquakes and tsunamis?
– If the earthquake in Japan was a larger magnitude than considered by plant design, why can’t the same thing happen in the US?
– What would be the results of a tsunami generated off the coast of a US plant? (Or why are we confident that large tsunamis will not occur relatively close to US shores?)

[/quote]

Mike will likely get additional guidance on Monday morning.
Thanks
Stu

Previous Article

March 11th, 2011 – USGS guy on BBC just said that in response to the earthquake they went into “salami response mode”

Next Article

March 11th, 2011 – NRC Understood that Fukushima Event would ‘Bring a lot more importance to GI-199’ – Despite later criticizing outside analysis of potential risk