Seattle Earthquake Fault - Beneath Largest City in the Pacific Northwest

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More earthquakes in Seattle? A major fault runs beneath downtown Seattle. Faults are related to earthquakes and we have excellent evidence for a magnitude 7.0 or greater earthquake on the Seattle Fault 1100 years ago.
Alki Point, Restoration Point (Bainbridge Island) and tsunami evidence near Everett are all connected to the 900 A.D. Seattle Fault earthquake.
The 900 A.D. quake produced 21 feet of sudden uplift at some locations. The potential for that type of extreme ground shifting under our biggest city has scientists, engineers and emergency planners concerned.
What can you do to prepare? Be ready for one week of self-sufficiency in the event of a major earthquake.
For more information on Pacific Northwest earthquake preparedness - visit: www.emd.wa.gov/...

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1 окт 2024

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Комментарии : 89

@Mephilis78 4 года назад

It's always good to understand your faults. You can't improve otherwise.

@ColTravis 9 лет назад

I'm a Cascadian! There are actually more than a dozen parallel fault lines running from the Cascade Mountains to the Cascade subduction zone from Portland, OR to Vancouver, BC.

@Ellensburg44 9 лет назад

+Mark Haushahn Mark, I agree if you're talking about other shallow crustal faults in the Puget Sound, although they cannot be traced out to the subduction zone.

@ColTravis 9 лет назад

Some can, but not all of them. When I was in High School in Port Angeles we studied them. My teacher was a geologist with the Park Rangers.

@PaulThomsen1E Год назад

I'm reading the City of Bellevue Emergency Water Supply Master Plan just released yesterday, which prompted me to look up Seattle Fault. For Bellevue, it seems it could be twice as bad as Cascadia, though half as likely. Like other sources it's advising 2 weeks or preparedness for individuals (which seems optimistic when reading the plan). So it's funny to hear you passing on the 2013 advise of 3 days (as I have done in the past). Emergency management is definitely getting better year by year, but also more realistic.

@randysmith6493 4 года назад

Assuming a Richter 6. That area hasn’t moved much while areas around it has. You quake could be bigger. In 1964 in Anchorage we had to self sustain weeks in our 9.2, and Seattle is large, better plan for longer terms of self sufficiency.

@SuicidalLaughter 4 года назад

Me watching vids, trying to figure out what 2020 is gonna do next

@kerrysmith1899 4 года назад

The world has changed in the last month, and almost unrecognizable since New Years. Tectonic politics being one. The last quake was 1100 yeas ago. When was the one before that?

@aaronperez5539 2 года назад

Answering in 2022, nm actually lol

@meg.224 3 года назад

Eyyyy hi Christifidelis buddies just watching here for the science module

5 лет назад

So, the Sodo stadiums will fall into a giant crevice, with 70k sports fans. Buh-bye.

@dlwatib 5 лет назад

"You 'just' need to be prepared." Problem is that nobody has ever seen just how destructive an earthquake along the Juan de Fuca/Cascadia subduction zone can really be. We're used to thinking in terms of the piddling little earthquakes that California gets on the San Andreas fault. (The largest California earthquakes are in the magnitude 7 range. Magnitude 9 such as is possible in Washington, Oregon and Alaska is a whole different kettle of fish.) It is by far the most dangerous fault in North America, and also the one most likely to surprise people and catch them unprepared. In order to find a comparably dangerous fault zone you have to look at Japan, not elsewhere in the USA.

@whocares1581 5 лет назад

It's incredibly difficult to be prepared for an earthquake because they come with no warning. We can aware I think that's about as good as it gets. Of course you can have provisions stocked up and emergency plan for after the event

5 лет назад

@@whocares1581 But if you're at work and you home is miles away, good luck getting to your stores.

@amacuro 3 года назад

I know each person experiences the reality around them in slightly different ways, but I always had a bit of an issue with the concept of Faults as a way of describing geological structures. At least in some cases. To me it's a lot more illustrative if you describe Seattle to their non-scientific population as a city that is straddling over the edges of two moving blocks (which is basically the same thing a fault), but the focus in this concept is on the actual existing blocks and not some imaginary plane in between those blocks.

@Ellensburg44 11 лет назад

Thanks for watching, urawesomestperson. U R awesome.

@nathanielmurray2131 4 года назад

When the big one happens the ground will liquify. Quicksand. Have A Nice Day!!!!!!!!!!!!!!!!!

@Beall619 4 года назад

Washington is faulting

@zachjones6944 Год назад

Cascadia!

@jon9103 2 года назад

Why does I90 follow the fault so closely? Coincidence? Did the fault produce a natural path for the highway to follow?

@sisypheanteasoup7534 4 года назад

I simply cannot listen to his voice without thinking: Bill Clinton 😂

@Jesusisyhwh 2 года назад

Looks like you were standing at Jose Rizal park. I used to live a few blocks from there.

@alanjohnson2613 Год назад

Seattle buildings are the least seismic resistant design similar to bldg. in the midwest. They have tried to bring residential bldg. up to some standard.

@rosalieholland25 7 лет назад

I'd like to be in Seattle when an Earthquake happens, so I can actually tell people I've been in a natural disaster and lived lol...Last I was in Seattle I went to the top of the Space Needle it's amazing views up there but I would hate to be up there and see the needle fall with me inside oh dear there goes my life :/

@Ellensburg44 7 лет назад

Be careful what you wish for, Matt. Thanks for watching.

@rosalieholland25 7 лет назад

Well like I find earthquakes fascinating. Millions have been in them and I'd like to as well. We are overdue for one

@loge10 2 года назад

How do you know you'd survive? Then of course there's the other side- you'd like it just so you can boast that you survive even though perhaps many other people would die? Strange...

@ttmallard 8 лет назад

I've been doing tsunami coastal architectural design & town planning & saw that there is a dearth of research now being worked on mentioned in replies for dating previous tsunamis & correlating them. Into the fray I want to point out that most oil & gas tank farms are not in tsunami-safe zones and will cause oil-on-water fires, thus without the results of this research one would be wise to move the tanks.

@Ellensburg44 8 лет назад

+Tom Mallard Interesting. Thanks Tom.

@Ellensburg44 11 лет назад

Let's hope the engineers have done their homework, MegaTriumph!

@OttawaOldFart 5 лет назад

Washington=the most interesting area in North America.

@BillBerko 11 лет назад

Apparently, the tunnel is rated for a M 9.0. Let's hope so.

@davidelliott7746 3 года назад

I guess we all have our little faults...

@crohkorthreetoes3821 7 лет назад

wow, first time Ive heard this

@Ellensburg44 7 лет назад

Lots of new research here in Washington.

@lesliemergenthal75 4 года назад

First time for me too and its 3 years later than when you found out. Why weren't we told...like in science class in first school.

@AquaSteez Год назад

love your videos man! the i-90 one is a legendary video

@thomasplaysroblox3027 7 лет назад

Luckily the Space needle did not collaspe

@Ellensburg44 7 лет назад

Ha!

@whocares1581 5 лет назад

The earthquake was likely an 8 point or greater if it triggered a tsunami you need seafloor uplift. The other possibility is it triggered an underwater landslide. That wouldn't require a mega thrust earthquake.

@whocares1581 5 лет назад

Yes if there was a 20' sudden uplift We are talking about a Mega thrust earthquake most likely. Ive never heard of an earthquake causing uplift of the ground that was anything below an 8. Closer to a 9 point earthquake.

@whocares1581 5 лет назад

I just thought of something lol, Alaska had a 6.7? it was just shy of a 7 point earthquake, not too long ago. Not even a year ago, I think. That earthquake Massively distorted the land. So I may be wrong about the mega thrust being the only type of earthquake that can cause uplift. But I don't know if the Alaskan earthquake was uplift or if it was just buckling of the ground. I'm not sure if there's a difference lol lol. I guess this would depend on the geology of the area. I think the area of Alaska that was hit recently was near the same spot where the 1967 great quake occurred, Anchorage. There was severe buckling of the ground. 30' In some areas.

@briane173 4 года назад

Seattle fault is a thrust fault -- the northern margin of a block of crust between this fault and the Tacoma fault, which has a dip slip angle about 35° in the opposite direction of the Seattle Fault. It's getting squeezed upward like toothpaste in a tube between the Canadian Coast Range Buttress and the Sierra and Oregon crustal blocks rotating northward. A MM7.1 is enough energy to cause a 21' rise along a fault only 30 or 40 miles long such as the Seattle Fault, especially given how relatively shallow the fault is.

@jeanyvesangers3885 2 года назад

12 11 21

@michaeltrower741 Год назад

Just a 5% chance? Is that what I heard?

@BillBerko 11 лет назад

The tunnel will be much more safe than the viaduct. None of the BART tunnels were damaged in the World Series Quake in SF.

@MrBonners 2 года назад

much more then 5% chance now.

@daedalus9042 3 года назад

This content is great, sad to see you don't post anymore!

@Ellensburg44 2 года назад

Nick Zentner RU-vid channel.

@steveo89 5 лет назад

The fault line runs right under my old high school in issaquah

@killsalive1 6 лет назад

i'm ok with the quake thing. But my nagging question is that is there anything in that pack Nick is wearing?

@Ellensburg44 6 лет назад

Skittles!

@Miata822 5 лет назад

@@Ellensburg44 A 72 hour supply?

@briane173 3 года назад

Meh, coupla smoke bombs, rabbit, a skeleton -- the usual stuff.

@alexisnicole1556 5 лет назад

I live on Bainbridge island /: lol

@larryhinze8658 4 года назад

Hey. It's only life. Until it isn't.

@danielpark3249 9 лет назад

Im scared

@crohkorthreetoes3821 7 лет назад

Don't be scared, Be prepared ;)

@dlwatib 5 лет назад

Be both! You need to be more than a little scared in order to be motivated enough to adequately prepare. Moving would be a good idea too.

@MrRare16 10 лет назад

I like the intro song do you mind giving me the chords? interesting video

@Ellensburg44 10 лет назад

Pretty simple, MrRare. C7 - F - C7. I'm self-taught...but that's probably obvious. Thanks for the comment!

@davyboybunkia4586 5 лет назад

Just is quit but it's talk hot spots are fresher gear from now or three fault runs through St helons reawaking everett mount Spokane and Rockies this not sudden but more earth quake are hit as year goes by shur that pit Tacoma under see keaval direct as pound around it is ociean and foult river

@Ellensburg44 11 лет назад

Thanks Taylor.

@seannewhouse892 8 лет назад

skyscrapers should be well based and built at angles and ive also suggested wayz to escape in case of problems inc emergency corner elevators etc

@Ellensburg44 8 лет назад

+Sean Newhouse Building codes have been upgraded based on these new earthquake discoveries, Sean. That's the good news. But like you, I wonder how the big ones will fare during the next Big One.

@neo-didact9285 3 года назад

@@Ellensburg44 Up to what magnitude can buildings withstand with the new building codes?

@jadynburgess1252 9 лет назад

will it git to lakestevens?!

@Ellensburg44 9 лет назад

Jadyn Burgess Tsunami? No. Ground shaking? Yes. Thanks for watching.

@makyamatt4243 9 лет назад

Will Omak be affected

@Ellensburg44 9 лет назад

+Makya Matt Maybe a little shaking, but otherwise no. You live in a great area.

@Ellensburg44 11 лет назад

Good point, Bill!

@RJM1011 5 лет назад

Have you got anything on the Coso Volcanic field in CA where those earthquakes are going on since July/04/2019 some people are thinking that the area is waking up what type of rock is there and if it does come to the surface what sort of volcanic event do you think it could be ?? I have seen many of your videos and like your work and knowledge on these things so thought you were the man to ask. Thank you.

@Pasakoye 7 лет назад

Great vids.

@Ellensburg44 7 лет назад

Thank you.

@MM-pt2bo 9 лет назад

Would Edmonds be effected by the tsunami

@Ellensburg44 9 лет назад

Mazen Mahmoud Yes, the last Seattle Fault quake produced a tsunami that surged in Puget Sound north at least to Everett. Sand deposit is the evidence. Found on many shores including south tip of Whidbey Island. This tsunami should not be confused with the much larger tsunami that hammered the west coast of Washington. Thanks.

@gurnblanstein9816 9 лет назад

+Mazen Mahmoud You won't have to worry living in Edmonds, unless you live right on the beach. It will flood a little no real tsunami. You will need to worry about the quake much more...

@Ellensburg44 9 лет назад

+Gurn Blanstein Disagree. Sand layers around the Puget Sound are currently being studied to learn of past tsunamis in the Sound. Many sand layers. Dates are being determined. To say "no real tsunami" in incorrect based on the deposits at Edmonds and other locations.

@gurnblanstein9816 9 лет назад

Not much for tall tsunami waves like the coastal areas will get, just a mega high tide with MUCH smaller waves and flooding from the tidal surge...

@SaItogaming202 3 года назад

online school go brr

@seannewhouse892 8 лет назад

they oughta start restructruing skyscrapers I still say they can do without these monstrosities

@JB-1138 5 лет назад

Seattle's high rise buildings are built similar to Tokyo's building tech. Essentially they are on ball bearings. They move accordingly. When earthquakes happen.

@neo-didact9285 3 года назад

@@JB-1138 Up to what magnitude can they withstand?