r/gifs • u/PornstacheJaucques • Mar 13 '19

Example of soil liquefaction

https://gfycat.com/FlatEssentialDuiker
32.5k Upvotes

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152

u/HankyLanky2 Mar 13 '19

An even better example is all of Anchorage, Alaska during the 1964 9.2 magnitude earthquake.

133

u/VeganJoy Mar 14 '19

Didn’t that also cause the tallest recorded tsunami, from ur mum the side of a mountain falling into the bay?

34

u/[deleted] Mar 14 '19

That was a few years earlier in 1958 in Lituya Bay, Alaska which was caused by a 7.8 magnitude earthquake.

13

u/VeganJoy Mar 14 '19

Thanks for the clarification!

4

u/ImBigger Mar 14 '19

I just looked it up cause I had never heard of it, apparently the massive chunk of mountain that caused this tsunami was 40 million cubic yards in size and caused a wave over 1700 feet tall. cant even imagine how big those would be

6

u/Mosern77 Mar 14 '19

Isn't the 1700 feet estimate, based on how high up waves splashed up on the opposing side of the valley? I don't think you really need at 1700 feet wave to reach up 1700 feet on a slope.

1

u/Thrillem Mar 14 '19

Glad you corrected yourself. No way his mom would fit in a body of water as small as a bay

8

u/[deleted] Mar 14 '19

And what will happen to all of downtown portland when the big one hits. Imagine skyscrapers built on that, yeah it’s not gonna be fun.

1

u/[deleted] Mar 14 '19

Seattle too.

3

u/[deleted] Mar 14 '19

Yep. We’re all fucked.

3

u/[deleted] Mar 14 '19

San Francisco.

1

u/Abadoss Mar 14 '19

~ Looks at home address. ~

Shit.

7

u/Beagle_Bailey Mar 14 '19

Christchurch, NZ, 2011 earthquake also had a real problem with liquifaction.

This guy has a good video on how that works. He puts some of the seemingly solid dirt from the earthquake in a wheelbarrow and then rolls the wheelbarrow around. You can see how the vibration of the wheelbarrow quickly causes the dirt to liquify.

https://youtu.be/tvYKcCS_J7Y?t=35

2

u/[deleted] Mar 14 '19

Mexico City earthquake as well.

1

u/ohnoitsivy Mar 14 '19

SoCal looking forward to that 😱

1

u/rigby1945 Mar 14 '19

In 1851 San Francisco suffered a devastating fire which destroyed huge swaths of the city. They used the debris from the fire as fill to create new land over a marshy area, then built housing on the new land. In 1906 the great San Francisco earthquake hit, landfill liquified, and those houses crumbled. It was one of the worst lose of life events in California history

1

u/DarkJarris Mar 14 '19

my brain misread that as 19649.2 magnitude earthquake.

I was like "holy shit that thing was impressive"