They're grand |
Now this is a big relief: Southern California Edison, which operates the San Onofre Nuclear Generating Station, or SONGS, says that their nuke plant--you know, those two pendulous white domes on the beach between San Clemente and Camp Pendleton--is totally safe. And by "totally safe," they mean it was built to withstand a 7.0 earthquake and/or a 25-foot tsunami. This good news came courtesy of anOrange County Register story on March 12, the day after a 9.0 earthquake followed by a 30-foot tsunami hit Japan, creating a nuclear emergency of epic proportions, with three reactors now close to melting down.
So what if a 9.0 earthquake strikes along the Newport-Inglewood fault, which is just offshore Orange County's coastline, causing a 30-foot or higher tsunami?
No comment, apparently….
• See also California reactors vulnerable to quakes, lawmakers say (OC Register; Sforza)
In an eerily prescient missive sent just days before natural disaster crippled Japanese nuclear reactors, California lawmakers warned federal officials that San Onofre and Diablo Canyon nuclear power plants may be more vulnerable to quakes than officials care to acknowledge….
DtB has written about So Cal Tsunamis before:
• Preparing for the Big Wet One - 12/26/06
• So Cal tsunamis? - 11/24/06
• GI Bill and other news - 6/19/08
1 comment:
FWIW -- Past earthquakes on the N-I fault have not produced tsunami. In CA, San Andreas-related faults generate mostly strike-slip motion (i.e, mostly in the horizontal). These types of faults don't easily generate tsunami because this requires significant vertical offset of the ocean floor.
Also, because of the nature of these faults magnitude 9 earthquakes are pretty much impossible and magnitude 8+ are pretty rare (I think the 1857 Fort Tejon quake (M=8.3) is the only example, and this is an estimate because it's pre-seismograph.
If we experience an earthquake locally on the Newport-Inglewood fault that rates an 8, I expect we will have _much_ bigger worries than what might be happening at San Onofre.
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