Picking up some activity on Cascadia- 5.8 Quake but...

a reply to: Thorneblood

Mock all you like, but when T.A. starts talking about earthquakes......it's best to listen.
If you really want to see what he can do with Doom Porn, check out his book.
www.amazon.co.uk...=sr_1_sc_1?s=digital-text&ie=UTF8&qid=1433213895&sr=1-1-spell& keywords=mega+ctaclysm+the+last+survivors

a reply to: DAVID64

lol, yeah now THAT is most DEFINITELY doom porn! Links in my sig to the book.

a reply to: TrueAmerican

So these quakes on the Juan de Fuca ... do they build stress on that locked zone? I know you said they don't let off steam from it.

a reply to: ketsuko

Some of them could, yes, contribute stress to the locked portion because of stress redistribution. But some could actually relieve pressure a bit. It depends on the exact quake and the way it ruptures, and in which direction. If it does so in such a way as to increase pressure on the locked zone, then that is not good- obviously.

But seriously, part of what people need to understand here is triggering. When big quakes start happening next to a stressed out locked zone, even way out at sea like this, the potential for triggering a bigger quake in the locked zone is ever present. That may be exactly what happened in Japan. The 7.2 was close enough, and sent enough force through a locked point that it gave way into a 9.0. So that's why you gotta pay attention when anything over 6 mag gets near that zone. I am not saying freak out. I am saying stay calm, make sure supplies are in order, and just be aware and keep an eye on that seismicity.

Now a 4.2

M 4.2 - Off the coast of Oregon

DYFI? - I
Time
2015-06-02 03:11:25 UTC
Location
44.758°N 129.650°W
Depth
10.0 km

Time
2015-06-02 03:11:25 (UTC)
2015-06-01 20:11:25 (UTC-07:00) in your timezone
Times in other timezones
Nearby Cities
442km (275mi) W of Depoe Bay, Oregon
461km (286mi) WNW of Coos Bay, Oregon
500km (311mi) W of Dallas, Oregon
506km (314mi) W of Corvallis, Oregon
523km (325mi) W of Salem, Oregon

earthquake.usgs.gov...

The oregon earthquakes are trending #1 on my facebook sidebar. The hype is real.

Interesting that these quakes are occurring at almost exactly the same Latitude as the Yellowstone caldera.

originally posted by: METACOMET
Interesting that these quakes are occurring at almost exactly the same Latitude as the Yellowstone caldera.

Yellowstone shouldn't be affected by the Juan DE fuca plate. Not only is it too far away, but it is not created or fueled by tectonic plates. Yellowstone is a hot spot, like an open wound on the North American plate.

www.washington.edu...

Our knowledge of the Cascadia Subduction Zone and the 1700 earthquake is very new. It's helpful to go back to stories like this one for better understanding. The episodic tremor and slip phenomenon is also new to scientists, so it's still poorly understood. There isn't enough of a pattern of movements over time to understand what to expect.

This writer has a number of articles I find helpful:

jacquelinewindh.com...

Pay attention to the inland volcano arc on the map.

One point that she makes in other articles is that people aren't prepared enough for what would happen in another Cascadia quake of the same magnitude. She says most people do not understand the tremendous amount of movement that would take place in such a future quake, nor how to react. Present planning seems to focus on tsunami planning, but how many would be able to enact their tsunami escape plan once the shaking is over? She also points out flaws in tsunami escape route maps, and so on.

a reply to: TrueAmerican

Thank you.

I'm fine where I'm at, but I have relatives out west.

a reply to: Barker
All quiet on the Western Front but I did stock up on more water and EQ proofed my sons room. Thanks for that link barker, I'll check it out when I get home.

I stocked up on water as well.

Thanks for the links... her article was very interesting. Like how they carbon dated old plants to find out how far last tsunami went. Hopefully we are still a couple hundred years away from a big one in this area.

originally posted by: Barker
www.washington.edu...

Our knowledge of the Cascadia Subduction Zone and the 1700 earthquake is very new. It's helpful to go back to stories like this one for better understanding. The episodic tremor and slip phenomenon is also new to scientists, so it's still poorly understood. There isn't enough of a pattern of movements over time to understand what to expect.

This writer has a number of articles I find helpful:

jacquelinewindh.com...

Pay attention to the inland volcano arc on the map.

One point that she makes in other articles is that people aren't prepared enough for what would happen in another Cascadia quake of the same magnitude. She says most people do not understand the tremendous amount of movement that would take place in such a future quake, nor how to react. Present planning seems to focus on tsunami planning, but how many would be able to enact their tsunami escape plan once the shaking is over? She also points out flaws in tsunami escape route maps, and so on.

www.earthmagazine.org...

This is also useful information about the CSZ.

Seamounts affect water and heat flow. But as you would expect, there seems to be a lot of debate about them being a friend or foe, or both, when it comes to large earthquakes in subduction zones. Wait, watch and see, I guess.

Further north, Haida Gwaii and the Bowie Seamount might give some clues.

a reply to: Barker

Thanks for both your posts Barker, and welcome to ATS. Generally people around here don't post information of that quality unless they are scientists or have some training in a specialty field. So if you are one, then great and I hope you stick around as we all weave our way through the mucky waters of seismic events.

Listening to this audio podcast of Jacqueline talking about the CSZ and the big quake coming, and extremely relevant issues that need to get addressed. Anyone who lives out there should really listen to this:

jwindh.files.wordpress.com...

It just underscores the seriousness of the situation out there. When that quake hits, people think a few days food and water is going to cut it? Ha. No chance. It could be weeks or months before any help at all arrives to the smaller towns. This podcast gets deep into the details and boy oh boy! That is going to be one friggin mess out there.

a reply to: TrueAmerican

www.abovetopsecret.com...

So whatcha say T.A.? 24-48 hours before a big one devastates the west coast?

Yep, the local fire services even says 4 to 8 weeks to get to us on the coast.....at the absolute soonest. That's from the Toledo fire chief.

a reply to: TrueAmerican

Closer to the volcanos?

M 2.7 - 13km SW of Morton, Washington

Time2015-06-04 13:48:24 UTC
Location46.490°N 122.418°W
Depth19.3 km

Be Well!

Bishop