It gets very unstable when soaked.
Combine a bunch of rain like they've had this winter with a good-sized earthquake and it would be catastrophic. Much of the land mass would become soup.
I lived in the Seattle area for 45 years and have ridden my bicycle through the area covered by that slide. I moved to Central KY in 2011. We own two fingers of a plateau about 80 feet over the valley below. My wife was asking about slides here. I’ve worked the dirt in both areas. here, if you dig down a few feet you get clay and limestone. It’s basically a big rock under us. Completely different.
It would have to be. We get torrential rains here on a regular basis (anything that can slide, has slid). That’s why I spent all day Saturday with my tractor re-grading the steep hill of our driveway that brings you up from the valley. It’s made of the dirt and when leaves clogged my ditch, it re-directed those torrential rain fed waters right down the middle of my driveway, creating an 18” deep and 12” wide grand canyon meandering right down the middle of it.
But when I dug out my ditch, I eventually hit the clay. It’s not going anywhere in a hurry.
Prayers up for the survivors and their families.
Hard to believe this happened in the US.
Meanwhile, CNN is still “BREAKING NEWS!” with nothing new to report about MH370.
I guess that’s easier and cheaper than actual “Reporting”.
Good grief! How do you go from 3 dead to 8 to 108 missing and miss that info? Do the news orgs not even care about those NOT living in a city?
I think I hit 60mph on my bike on the hill into Arlington.
I’m a little shocked this story isn’t getting more traction on FR.
Death toll at 14.
Reports of 108 unaccounted for.
Unofficial partial list of over 35 at this link: http://www.breakingskagit.com/530-slide/missing-530-slide/
Lots of really tragic stories, including family of 6 missing; wife and 4-yr old missing the husband and her other 3 children; Texas woman’s parents, daughter, and daughter’s fiance’ missing; plumber installing hot water heater missing; etc...
Incredible aerial photo gallery: http://www.heraldnet.com/apps/pbcs.dll/gallery?Site=DH&Date=20140322&Category=NEWS01&ArtNo=323009999&Ref=PH&Params=Itemnr=1
This is a crazy 2-part panorama of the slide area. Click the arrow in the photo and the photo pans left and right. The first image is the top half of the slide. When done with that image, click on the arrow at the bottom of the photo to go to the second image (from 1/2, to 2/2):
The top of the mudslide was at elevation 900 feet.
The river level, where the slide dropped to, is 260 feet.
640 feet of elevation drop... spread out over a square mile.... A mile of the highway is blocked. That means a mile of roads in both directions on which there could have been cars driving through, at 10:47 am on a Saturday morning. One woman was on her way to a friend’s house and she was due there at 11:00 am. She never made it, and she is unaccounted for. There were construction crews in the area. One person was taking a shower one minute, and buried under a tractor the next.
Skagit County Breaking News: https://www.facebook.com/SkagitBreaking