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South Whidbey - Woodinville Fault

thread487-216720

South Whidbey - Woodinville Fault

South Whidbey - Woodinville Fault

(OP)
A friend (non-engineer type) toled me this weekend that they heard some new information on this fault on a TV news broadcast last week.

Supposedly, some new information regarding this fault was discovered from recent activity on an adjacent fault.  It's now supposedly rated somewhere between a magnitude 8.0 to 9.0 on a possible future event.  This magnitude rivals the Cascadia Subduction zone effect and I find it very hard to believe, although the faults are only separated by about 300 miles as the crow flies.

Can anyone verify this?  I did not see any news information.

Mike McCann
MMC Engineering

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RE: South Whidbey - Woodinville Fault

recent article
http://www.nwnews.com/editions/2008/080505/features1.htm

i'm not up to speed on that area, but this article mentions M7.5...jumping from M7.5 to 9 is a huge jump and seems a little far, but again, i've not done a lot of reading on that particular fault. the latest usgs report suggests a M7.5 for that specific fault. (search "whidbey" and you'll see the references). http://pubs.usgs.gov/of/2008/1128/pdf/OF08-1128.pdf

here's another usgs report turned up with a quick search.
http://rds.yahoo.com/_ylt=A0geu5BB1ChIhScBIMlXNyoA;_ylu=X3oDMTEycHR2anJoBHNlYwNzcgRwb3MDMwRjb2xvA2FjMgR2dGlkA0Y4MjJfODM-/SIG=125vc0v5p/EXP=1210721729/**http%3a//pubs.usgs.gov/of/2005/1136/of2005-1136.pdf


 

RE: South Whidbey - Woodinville Fault

(OP)
Thanks.  I'll take a look.  Sounds like they probably misread the article, assigning 8 to 9  to a 7.5.  Anything for print, right?

FYI, the last link comes up unavailable.   

Mike McCann
MMC Engineering

RE: South Whidbey - Woodinville Fault

(OP)
From reading another recent article, the UGGS is now saying that the Seattle Fault, a long recognized hazard at a 7.2 level, may be a lateral branch of this same Whidbey fault, now rated at 7.5+.  It's also interesting that they now think that the longer the faultline, the greater the larger quake potential.  Makes sense from an energy - spring theory - level.  

And the light gets brighter...  I just hope it's not magma breaking the surface...  nosmiley

Mike McCann
MMC Engineering

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