Another Slow Tremor Moving Beneath Olympic Peninsula

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This is quite interesting.

Medford north is redwood country.
Is this signature precursor to an earthquake?

reply to post by janon


Oh wow. I have never messed with the Time options! Yeesh. Thanks for that janon!

Wow - this is interesting. Moving up and near Medford now! S @ F

This is from Jan 1, 2010 to today. Notice that it is only showing 5000 out of 30333 epicenters. Looking at it from this perspective it is kinda scary.

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reply to post by berkeleygal


Very cool! Looking at this, you can almost see the 'wave' resonating from the North down to the south and then back up again. I have had a working theory of this regarding the wave-like motions of these tremors.....perhaps it IS an actual wave? It has been theorized that there is a very large magma chamber under the PNW...maybe it is even bigger than they imagine and is tied into ALL the active volcanos and calderas along the West coast of Washington, Oregon and California (not just washington)?

I know that is a bit out there, and I'm not saying it is what I believe but I think as a theory it has some validity.

reply to post by berkeleygal
Well being that it is an area that the two crustal plates are grinding together,.
What is scary?


shouldn't we be more concerned if the movement stops?

reply to post by Lil Drummerboy


For me, the concern is that it's not going away as I believe (maybe I am wrong) like it has in the past. In fact,I would say that it seems to be picking up some significant steam. It shouldn't be happening again for another what, eleven or twelve months?

Also, the fact that we have not had anything about 1.0 in the state of washington for several days and nothing signifcant for quite some time, added to this 'wave' of tremors make me just a little more on edge for a possible release.

reply to post by Lil Drummerboy


It would be concerning to me if it did stop. Because it would leave that uneasy feeling of "something is about to happen".. But like all earthquakes nobody knows exactly when or where. It would be a little more concerning to me if these tremors moved at a faster rate northward.
Side note, these tremors moving northward remind of how I wake up every morning as I get out of bed. Feet hit the floor first then all my joints start "popping" up to my neck as I stretch..

No time for screen shots, but the tremors are lessening.

www.pnsn.org...
12/04/2010
1.7 Hours
25 Epicenters

So as the quakes eased off, the tremors spiked. Now the tremors have almost stopped and still now quakes. Our corner of the country is almost clear of any on the USGS map. You rarely ever see that.

I noticed Alaska had a bit of a swarm yesterday. Perhaps the pressure will be released up North....I don't know, but I think it's gonna give somewhere soon. I would not be AT ALL surprised to see at least a 6.0 somewhere between Southern Oregon and Alaksa in the next day or two, most likely nearer the coast of Washington.

Well the tremors seem to have stopped (0 recorded for today) and the micro quakes started up again last night here in the PNW after almost a week of nothing.

MAP 1.0 2010/12/05 05:42:27 47.452 -122.884 19.5 10 km ( 6 mi) NNW of Allyn-Grapeview, WA
MAP 1.2 2010/12/05 04:52:11 47.786 -122.845 19.5 6 km ( 4 mi) SSE of Quilcene, WA
MAP 1.3 2010/12/04 18:59:47 47.730 -123.147 40.4 18 km ( 11 mi) WNW of Brinnon, WA
MAP 1.4 2010/12/04 17:00:25 47.446 -122.067 7.4 2 km ( 1 mi) E of Maple Heights-Lake Desire, WA
MAP 1.3 2010/12/04 16:09:23 47.311 -121.883 23.0 9 km ( 5 mi) SE of Ravensdale, WA
MAP 1.2 2010/12/04 11:01:25 47.827 -122.079 19.3 3 km ( 2 mi) SE of Cathcart, WA
MAP 1.2 2010/12/04 00:52:50 47.768 -120.684 6.1 19 km ( 12 mi) N of Leavenworth, WA

LINK

Gone for a day, now they are back.

12/07/2010
3.1 Hours
43 Epicenters


www.pnsn.org...

So since 12/07/10 these tremors were around Grants Pass Oregon. 3.1 hours 43 epicenters.
12/08/10 same area but spread out and some tremors started in Longview, WA area up to Olympia, WA. 2.1 hours 29 epicenters.
12/09/10 mainly around Longview 2.5 hours 35 epicenters.
Now 12/10/2010 6 hours 103 epicenters but all located on Vancouver Island.
These tremors have moved back up north....

Edited because I forgot linky

6.7 hours 121 epicenters. The tremors in the Seattle area look to be located right on the Seattle fault line.
6.7 hours 121 epicenters 12/11/2010

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I'm loving those time-lapsed maps. They make it very easy to see how these tremors are 'flowing'. I had seen the new cluster up my way again...then we had a couple of small quakes at about the same time, and now the tremors are gone again. There haven't been any located for a couple of days.

I'm begining to think of it as a very low on-going rumble that is reverberating back and forth....kinda like a shiver running up and down your spine. I think it's indicative of all the pent-up energy just waiting to burst free. still think that it is connected to the suspected magma chamber, which would ofcourse be tied into the cascade volcanic range, which just happens to sit on one of the biggest subduction zones on the planet.

I would REALLY like to see some sort of report come out of the PNSN about this. Is it 'normal' for there to be this much activity in between the 'official' tremors, or is it increasing? I've saved all my links, maybe this afternoon when I have some time I'll try and find a good email to send that question to. I'm sure there has to be several scientists following it, so someone has to know.

1/1/11 18 hours 340 epicenters..
Look's like a majority are on the southern Vancouver Island.
1/1/11

Here's one out at sea! Haven't seen that before!

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reply to post by berkeleygal


Yeah, I would say that it is definately still actively moving around.

I could hear the rumbling pretty good today from that direction this afternoon too.

I don't know, but this has been a wierd year so far!!