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West Coast USA: Pay Attention, Cascadia May Be Ready to Rupture

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posted on Feb, 14 2012 @ 05:17 PM
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So, the northern end of the subduction zone shows some wiggling.
Mag 4.2 offshore Vancouver Island, Canada
edit on 2/14/2012 by Olivine because: improve post


edit on 2/14/2012 by Olivine because: link




posted on Feb, 14 2012 @ 05:17 PM
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USGS is showing a new 4.2 off of Vancouver. I am having issues with linking it.
edit on 14-2-2012 by AuntB because: (no reason given)



posted on Feb, 14 2012 @ 05:42 PM
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Magnitude
4.2
Date-Time
Tuesday, February 14, 2012 at 22:54:40 UTC
Tuesday, February 14, 2012 at 02:54:40 PM at epicenter
Time of Earthquake in other Time Zones
Location
49.214°N, 128.751°W
Depth
10 km (6.2 miles)
Region
VANCOUVER ISLAND, CANADA REGION
Distances
191 km (118 miles) SSW of Port Hardy, British Columbia, Canada
235 km (146 miles) W of Ucluelet, British Columbia, Canada
268 km (166 miles) WSW of Campbell River, British Columbia, Canada
405 km (251 miles) WNW of VICTORIA, British Columbia, Canada
Location Uncertainty
horizontal +/- 25 km (15.5 miles); depth +/- 2.7 km (1.7 miles)
Parameters
NST= 33, Nph= 33, Dmin=268.3 km, Rmss=0.65 sec, Gp=212°,
M-type=body wave magnitude (Mb), Version=9
Source
Magnitude: USGS NEIC (WDCS-D)
Location: USGS NEIC (WDCS-D)
Event ID
usb00080ej


earthquake.usgs.gov...



posted on Feb, 14 2012 @ 06:00 PM
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Originally posted by Olivine
So, the northern end of the subduction zone shows some wiggling.
Mag 4.2 offshore Vancouver Island, Canada
edit on 2/14/2012 by Olivine because: improve post


edit on 2/14/2012 by Olivine because: link


That will probably just get rung up as an aftershock of the recent 5.7 near there, cause it looks like that's all it is.

At least, let us all hope so. I wonder if they chose the name Cascadia because when it finally goes, it's like a cascading domino effect played with fault lines, 7+ quakes and huge tsunamis, instead of dominoes? Nah.

I am guessing that if this thing is serious about letting loose, expect a bigger quake in the next days in the purple path somewhere. If that quake is above 6.5 or so, and in the purple pathway, that is going to be real bad news. If it's over 7, I'd seriously LEAVE. IMMEDIATELY.

And the problem is, once those kind of large stress redistributions start occurring with bigger quakes in a loaded zone, then one need look no further than Chile 1960 for the results of what can happen.

Right now I am hoping that 5.6 on the unknown fault extension doesn't cause some problems directly north of there.



posted on Feb, 14 2012 @ 06:13 PM
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reply to post by westcoast
 


Why don't some of you folks take a look at the two magnetometers referenced in my signature?

You might find some of your spectrogram excitement there. Just a thought.


Actually, by the looks of THIS one, I would say they haven't stopped


MCW.UW..EHZ.2012.045 by the way. I don't believe any other than one or two (actually 3 at most) on that spectrogram are seismic signatures. Of course I may be wrong.

edit on 14/2/2012 by PuterMan because: (no reason given)

 

I have downloaded the whole day from that seismo. I can find one quake at ~22:55 and basically the rest is either rubbish or 'military aircraft' type pops that are not seismic in origin.



As an example.

Oh and a telesism at ~08:32

edit on 14/2/2012 by PuterMan because: (no reason given)



posted on Feb, 14 2012 @ 06:48 PM
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Originally posted by PuterMan
Why don't some of you folks take a look at the two magnetometers referenced in my signature?

You might find some of your spectrogram excitement there. Just a thought.


So are you suggesting that seismographs are detecting temporal variations of the geomagnetic field, as opposed to slow-slip? You do realize what kind of insane amounts of gain they are applying to that instrument to derive those FFT spectros, right? And that special instrument is wholly different than a seismic instrument, right? Are you sure we're operating in the same ballpark here? Or is one baseball and the other football?
edit on Tue Feb 14th 2012 by TrueAmerican because: (no reason given)



posted on Feb, 14 2012 @ 07:02 PM
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reply to post by TrueAmerican
 



So are you suggesting that seismographs are detecting temporal variations of the geomagnetic field


I have shown many times that the magnetosphere affects seismographs - or the transmissions of the data. I have even matched them to the magnetograms and got an exact fit.

Since I do not know that parameters they are using and whether those are FFT of STFT or something else I cannot comment, but I will say that gain destroys the signal in my limited experience so I would be surprised if they were applying much.

I have to apply quite a bit of gain to hear the sound, but that makes the spectrograms very fuzzy.

 


as opposed to slow-slip?


The big spikes are NOT slip. You want the SAC file for the day?

edit on 14/2/2012 by PuterMan because: (no reason given)



posted on Feb, 14 2012 @ 07:32 PM
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reply to post by PuterMan
 


FFT:

Spectrograms are produced from the timeseries by computing the Power Spectral Density (PSD) of successive 102.4 second (1024 point) segments of data using the Fast Fourier Transform (FFT) technique. Each 24-hour continuous timeseries yields 844 individual PSD plots with 0.01 Hz resolution from 0 to 5.0 Hz. The spectrograms are visualized using a color/intensity map to produce a 2-D image from the data. The DISLIN Scientific Data Plotting library is used to generate the plots.


GAIN:

The magnetic flux density is enhanced by a factor of approximately 1,000 by the high-permeability metal core.



The sensor outputs are amplified by 40,000 and sampled at a 10 Hz rate with 16-bit resolution in a full scale of 10 Volts.


www.haarp.alaska.edu...

And whoa, I have not made any connection with those spikes and ETS. The other folks like wc are linking to spectrograms that are supposedly displaying ETS. And your post suggests that magnetic variation may be what they are seeing instead of ETS. At least that's the way I understood what you were saying? Is that not correct?
edit on Tue Feb 14th 2012 by TrueAmerican because: (no reason given)



posted on Feb, 14 2012 @ 07:56 PM
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Anyone have any advice on an earthquake preparedness kit that I can make or a link?

( I live on Northern Vancouver Island) Thanks.



posted on Feb, 14 2012 @ 08:17 PM
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Originally posted by phoenixlights321
Anyone have any advice on an earthquake preparedness kit that I can make or a link?

( I live on Northern Vancouver Island) Thanks.


On Vancouver Island?

Heh, yeah. Instant survival should the Big One hit.




Mosquito XEL NO PILOTS LICENSE REQUIRED TO FLY THIS HELICOPTER IN USA**
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rotorfx.com...

You too, can fly over the tsunami...
edit on Tue Feb 14th 2012 by TrueAmerican because: (no reason given)



posted on Feb, 14 2012 @ 08:59 PM
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reply to post by TrueAmerican
 


hahah thanks. I've always wanted a jetpack for these reasons.
I'm about 220 feet above sea level so hopefully that helps out.



posted on Feb, 14 2012 @ 09:29 PM
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reply to post by phoenixlights321
 


en.wikipedia.org...

Basic idea for you there.



posted on Feb, 14 2012 @ 09:35 PM
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Another quake coming in on west coast...stay tuned

5.9 OFF OREGON

earthquake.usgs.gov...

Nope nothing to see here...
edit on Tue Feb 14th 2012 by TrueAmerican because: (no reason given)


At what point does hoping it all goes away become wishful thinking?
edit on Tue Feb 14th 2012 by TrueAmerican because: (no reason given)


UPGRADED TO 6.0
edit on Tue Feb 14th 2012 by TrueAmerican because: (no reason given)


So the question is:
Is the fault serious about letting loose?
edit on Tue Feb 14th 2012 by TrueAmerican because: (no reason given)



posted on Feb, 14 2012 @ 09:39 PM
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reply to post by TrueAmerican
 


Ok TA, I've been following thread since page 1 & now with that 5.9 you're
starting to scare me. Nice work.



posted on Feb, 14 2012 @ 09:44 PM
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reply to post by TrueAmerican
 


Excuse my ignorance in these matters, but does it mean anything that it's the same depth as the Vancover event?
10km.



posted on Feb, 14 2012 @ 09:51 PM
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ON EDIT: The below map has been corrected at PNSN to now show only one quake.


Holy fired chicken Batman. There were two EQs off oregon both 5.9. Yikes

edit on 14-2-2012 by zworld because: (no reason given)



posted on Feb, 14 2012 @ 09:53 PM
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OH F--- Just got in - Happy V-Day to all - not good, not good at all --= be safe


Magnitude 6.0 - OFF THE COAST OF OREGON
2012 February 15 03:31:20 UTC
Versión en Español
DetailsMapsTsunami Earthquake Details
This event has been reviewed by a seismologist.
Magnitude 6.0
Date-Time Wednesday, February 15, 2012 at 03:31:20 UTC
Tuesday, February 14, 2012 at 07:31:20 PM at epicenter

Location 43.536°N, 127.381°W
Depth 10 km (6.2 miles)
Region OFF THE COAST OF OREGON
Distances 256 km (159 miles) W of Coos Bay, Oregon
293 km (182 miles) WSW of Newport, Oregon
302 km (187 miles) NW of Brookings, Oregon
380 km (236 miles) WSW of SALEM, Oregon

Location Uncertainty horizontal +/- 19.7 km (12.2 miles); depth +/- 6.2 km (3.9 miles)
Parameters NST=205, Nph=211, Dmin=282.8 km, Rmss=1.15 sec, Gp=180°,
M-type=regional moment magnitude (Mw), Version=6
Source Magnitude: USGS NEIC (WDCS-D)
Location: USGS NEIC (WDCS-D)



Source

Folks time to really think about a vacation inland!!!



posted on Feb, 14 2012 @ 09:58 PM
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reply to post by TrueAmerican
 


TA, your calculations and predictive posts are becoming stunningly accurate. All I can add is prayers for those in the Pacific NW.

Thank you, TA, and all who share their seismic knowledge.



posted on Feb, 14 2012 @ 09:59 PM
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Prepare for the worst, hope for the best. I must say this activity in the last couple of weeks here is slightly unnerving. Im in Vancouver on the coast. Updating out earthquake kit this evening, going out shopping soon. Evacuation plan is confirmed with other family members. Its not a matter of if anymore it seems, it really feels to be a matter of when. Stay safe folks! And once again, thank you to the invaluable members on this board...your information could potentially saves many lives.



posted on Feb, 14 2012 @ 10:04 PM
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reply to post by twistedroots
 


Quick question, as I don't want to take up time/space on the thread, but, as you live there is the local media--tv, radio--covering this uptick in seismic activity? Are they warning people to prepared?





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