Cascadia Subduction Zone: Less damage...

Cascadia Subduction Zone: Less damage on land, bigger tsunami?

There are 1 comment on the KVAL-TV Eugene story from Sep 4, 2013, titled Cascadia Subduction Zone: Less damage on land, bigger tsunami?. In it, KVAL-TV Eugene reports that:

Scientists are just back from a monthlong research cruise in the Pacific Ocean off Washington state, where they were trying to find the stickiest point on a section of the Cascadia Subduction Zone , the huge undersea fault that breaks loose every few hundred years and generates a massive tsunami and earthquake.

Join the discussion below, or Read more at KVAL-TV Eugene.

“Geologist [I'm Climate Change]”

Since: Mar 07

formerly Nuneaton

#1 Sep 4, 2013
Currently watching that space...

Found that the last (1700AD) was apparently a 2 stage event with initial event beginning in Northern californai & trending N. with vector NW. whith largest runout in the south and petering out near vancouver island.
2nd event was WNW. vector which broke the N part of cascadia through to halfway along Vancouver Island and continued S. through Cascadia with the largest runout probably central Oregon and likely petering out at the lassen field area latitude.

The result was a pair of turbidites in the Washington area. The relaxation of the basin & range was highest in the WNW. vector in the 2nd event & relaxed the crust to the Colorado hotspot & beyond. This relaxation appears to have a lot to do with the New madrid rifts of the 1812 timespan.

Currently the highest recompression rate is in the S. part of cascadia near cape Mendocino, as a result of the slow slide of California along the nest of transform faults & rifts extending from E. of the owens valley through to the coast. The interesting thing is that this bit was not mentioned in the GPS data results!

The other interesting bit is in the far N. of cascadia @ Vancouver as the SW. vector directly opposing the NE-SW convergence of Juan de Fuca & Explorer plates with North America has not run out via a megathrust quake yet.

Would like to see the results of the survey.

Have a nice day: Ag

Tell me when this thread is updated:

Subscribe Now Add to my Tracker

Add your comments below

Characters left: 4000

Please note by submitting this form you acknowledge that you have read the Terms of Service and the comment you are posting is in compliance with such terms. Be polite. Inappropriate posts may be removed by the moderator. Send us your feedback.

Natural Disasters Discussions

Title Updated Last By Comments
News Western Australia earthquake: Norseman rocked b... 17 hr Used to be a Demo... 1
News Severe thunderstorm watch for Halton Hills 18 hr Truck watch 2 1
News South Florida's rising seas and stronger hurric... 18 hr Cuban Coffee 1
News Coping with the heat Tue Crackle 7
News Bricks rain down from the sky, smashing Oklahom... Tue electricshockthem... 2
News Hawaii volcano eruption driving away millions i... Tue District 1 31
News Not just heat: Climate change signs can be seen... Tue microwaveuinhome 1