Another Slow Tremor Moving Beneath Olympic Peninsula, page 4

reply to post by westcoast

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That taffy demonstration was enough to keep me over here in Georgia! Looks like these quakes have been going on since 2002 that they know of, 8 yrs of the juan de fuce pulling downward on the plate-that is a lot of stress building up.

reply to post by berkeleygal

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Ha...they finally updated it. I checked it a few times today....good find.

Here is what they said about it on the PNW website:

Sep 12, 2010 - Oh dear. Is it really over? No tremor in the north but in the past two days there has been renewed activity at the south end of the ETS zone, two sets of burbles just north and south of Longview. I am going to again call it "after-tremor".

SOURCE

So far they are not claiming it back on...but I think that will change if this continues. Especially given the range of those tremors. There are a couple of clusters but there are also several spread out up the coast.

Here is the LINK to that interactive map once again.

Also of note, is that Helens is a little active again today:

10/09/11 13:12:09 46.20N 122.18W 0.0-0.1 AB
10/09/12 00:55:16 46.19N 122.17W 3.6 0.3 AA

And Hood:

10/09/11 22:38:00 45.34N 121.73W 7.1 0.1 AC
10/09/11 22:45:58 45.33N 121.74W 7.8 0.2 AC


SOURCE

reply to post by BigOrange

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Big Orange, I'm with you on that one. I live in the Upper Skagit Valley and that dam breaking is one of my biggest natural disaster fears. Pretty much everything from Concrete on down would be underwater, I'm guessing. Whether caused by volcanic action, earthquake, sabotage, whatever, it would be devistating.

It's the best place on earth, in my opinion, to live, but that fear of the dam is always in the back of my mind.There are also the Ross and Diablo dams. Our family plan is "run for the hills!!!"

reply to post by Brandyfro

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You and me both...I am right in it's path.

Just an FYI for you. The parking lot of the Skagit Valley Casino up on Bow Hill Road is designated as an incident command location in case of a dam break, so that would be a very good place to head. There would be tents and supplies there as well as medical triage, not to mention the many hotel rooms available!

Hopefully we will never need it, but knowing a safe escape route and a family plan just makes sense if you live in a vulnerable area such as we do! It could make the difference between life and death. We would have a VERY short amount of time before a deadly flood of water reached us. A Lahar from Baker would quickly engulf us.

So maybe this isn't over yet? After a couple of days of nothing, there are again severl deep tremors located on both Vancouver Island and Northern Oregon.

Check it out HERE

reply to post by westcoast

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Westcoast, thanks for the heads up about the casino. I had no idea they had declared it a staging area. Good safe area on high ground, for sure. Plenty of open area around it if needed. I have to guess they do consider Baker a true threat if they have planned it out that far.

reply to post by Brandyfro

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Oh yah, DEM (Department of Emergency managment) has to plan for all kinds of possible natural disasters. Considering Baker is an active volcano, it poses a very real threat. The casino also already has security in place and a good communication sysem with the ability to communicate directly with dispatch and hand-held radios. They can run indpendently on a large generator and a huge natural gas supply...so they could be cut off for sometime and still function.

Oh, and I don't think these tremors are over yet. 153 epicenters today so far, in Southern Oregon. Check it out LINK

I took the time tonight to check out Aaron Wech - a very intriguing fellow

www.aaronwech.com...

reply to post by berkeleygal

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I tried your link, but it doesn't seem to be working?

It would seem that things are picking up again. Over three hundred tremors in the past 18 hours Hmmm....I'm wondering what this might mean. No mention on the PNSN website about it. Maybe they are waiting to see what happens. I Don't believe this is the normal pattern they have seen in the past so hopefully it isn't leading to something....

LINK TO TREMOR MAP

reply to post by westcoast

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Link works for me anywayz, scroll down to the bottom of your Cascadia Tremor Activity page and click on Aaron Wech's name.

Yep, there's a lot of tremors going on there in that one area.

Woah!! What's up here??!! All of a sudden, the tremors are back! This is not the norm, from what I understand. We shouldn't be seeing this kind of activity right now. I had noticed our local seismisity had slowed down a bit as the Arkansas and Oklahoma picked up....but now we have the tremors plus some small quakes at Mt.Hood and St. Helens.

108 epicenters in only 8.5 hrs

Check out this link:

MAP

I know it's not exactly the "North West" but as of late it look's like it's headed this way. This look's to me like a bunch of tremors moving northward which was located more south about a week ago. Now it's crossed into the state of Oregon.. What are your thoughts? Insight's?

Originally posted by berkeleygal

I noticed this last week. Got the 21st, 22nd and 23rd then life got in my way.. wish I had kept up on it now.

Here is todays

Thank you Berkeleygal for posting those pictures.One of these day's I'll figure out how to do remember how to do that. Something that keep's sticking in my brain is where these small tremors are located. If you look at the first picture (west of Eureka CA off the coast) and go due west you'll see the two points where the plates meet . Now it look's like to me the small tremors are moving northward which might mean the Juan De Fuca plate is possibly twisting or adjusting? I keep thinking of a "whip" effect is going to happen, which sadly I am close to the end of the "whip"...

reply to post by berkeleygal

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Thanks for keeping this updated! I've been watching, and while there was a splattering of tremors up my way (in the NW corner of Washington) it seems to be concentrating further south now and also increasing in numbers.

What also has me wondering is that fact that we haven't had a recorded quake in my state since 11/29. Very unusuall. I can't help but wonder between that and the tremors south if there isn't some pressure building.

reply to post by berkeleygal

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LOL...I had just checked before I posted, so they just updated it! WOW....I haven't seen that many in a days period since the 'official' tremors. I'll have to check the PNSN website to see if they have comented on it.

Edit to add:

Here is the last comment they made back in September. Based on what they said, I would think this might be declared a real event sometime soon.

Sep 20, 2010 - Very little tremor in northern Cascadia since the ETS ended on Sep 8, but there have been moderate burbles of tremor in southern Cascadia since then extending from just south of Roseburg to near Redding, CA. While very noticable this tremor does not seem to be continuous enough in time or space to be a real ETS. Processing of the AofA data recovered recently is going smoothly with the first array being loaded into a Winston waveserver right now. We hope to have a few example plots to display soon. In the mean time there is a summary of spectrogram plots that cover he whole period for station HDW (best response to ETS tremor) and sample times at a few other stations.

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