180 Deg Slip/Strike Eq in SoCal???

Originally posted by Hx3_1963
Edit: Gowd now all 3 look terrible...BHE +8?/BHN -5?/BHZ +3? still...

[edit on 10/5/2009 by Hx3_1963]

Yeah well, if the thing still isn't working right after a confirmed reset by the tech, then what more convincing does anyone need that:

1) There is something wrong with the station

2) The data from that station currently cannot be relied upon as accurate

3) The premise of this thread, unfortunately, was based upon erroneous data from a malfunctioning station, and therefore, sorry, but it is simply not true

4) This is not wind noise

Originally posted by kaskade
if you LIVE in california, what should you do/prepare? i think thats the most basic question EVERYONE IS TRYING TO ASK.
what could happeN? what should we expect? not a bunch of new numbers that 90% dont understand.

DOES NO ONE READ the pages and pages of people still asking the SAME QUESTION

ok i live in central calif...this is (yawn) normal, i don't worry unless it's a 4 or bigger. maybe in other parts of the country, this looks like we're about ready to slide into the ocean, and panic should ensue. but when you live here all of your life, you take this pretty calmly. now with the midwest getting hit every year with hundreds of tornadoes, the south getting hit with hurricanes and flooded by massive thunderstorms, and the east getting hit with record snowfall, and below freezing tempertures...i'll take my chances out here. oh... kaskade...nice avatar by the way.

[edit on 5-10-2009 by jimmyx]

reply to post by TrueAmerican
2.1 2009/10/05 13:47:20 36.399N 117.843W 0.4 10 km ( 6 mi) SSE of Keeler, CA

Well this news of the station takes considerable wind out of my ~sail~ , but, I did see the occasional same out of phase movements at the other two stations (MPM & TIN)...be it at lessor values...Hmmm...seems yer call is the correct one...thanks fer all yer input on this!

I guess there will be no way to really confirm the slip/strike theory, now that the station is ~contaminated~ (not to be trusted)

I guess I should of did that first, what you did later, and called Caltech for confirmation of that stations status before starting this thread...

Edit: Seems they took CWC down around 5:00 pm est?

If nothing else, this was a good learning experience and brought this swarm up for discussion...sorry folks fer Gloomin' & Doomin' Y'all...

I guess it's back to the Quake Watch 2009 thread to keep tabs on Samoa/Sumatra/Tonga...

Quake Watch 2009
www.abovetopsecret.com...

[edit on 10/5/2009 by Hx3_1963]

reply to post by Hx3_1963


Thanks of the info but we need it in a language we will undertand, this means nothing to us except to get us worried. S+F though


.... Nevermind... Strange, I couldn't see the other pages, just the 1st one... Now I see and understand. Thx again.

[edit on 5-10-2009 by Cydonia2012]

Meh...another little ~spurt~ ...

1.4 2009/10/05 17:08:10 36.389N 117.876W 3.4 11 km ( 7 mi) S of Keeler, CA
2.1 2009/10/05 16:58:55 36.378N 117.851W 2.5 12 km ( 8 mi) S of Keeler, CA
1.2 2009/10/05 16:39:47 35.721N 118.088W 4.2 12 km ( 8 mi) ENE of Onyx, CA
1.9 2009/10/05 16:27:17 35.034N 117.688W 0.0 3 km ( 2 mi) NW of Boron, CA

CI.CWC appears to be back on again...need to wait for a lower reading after the last EQ to see if they got it right...

Edit: Well...the calibration is still off, but, the wild swings have stopped?

~I~ still see a slight phase differential, but, better?

[edit on 10/5/2009 by Hx3_1963]

Originally posted by Hx3_1963
Here's an example of a slip fault...

If been noticing alot of earthquakes and after reading your information it may be true. We are seeing alot of these and they seem to be following a line just as you said. I hope it doesn't hit North America, but I think it will.

Hmmm...

Nope...if they had a Tech at the site they gave up

Now that it's back to minor readings, I still see the inversion

2.5 2009/10/05 17:44:34 36.392N 117.854W 4.0 11 km ( 7 mi) S of Keeler, CA

Now that was cool...watching a 5.3 from Pacific Rise on CWC/TIN/MPM

Edit: ...Enough to set off a small ones on CWC

quake.usgs.gov...

map 2.1 2009/10/05 19:53:43 32.724N 115.842W 1.3 15 km ( 9 mi) E of Ocotillo, CA
map 2.8 2009/10/05 19:51:12 32.716N 115.849W 0.8 14 km ( 9 mi) E of Ocotillo, CA
map 2.1 2009/10/05 19:46:56 32.684N 115.831W 4.2 17 km (10 mi) ESE of Ocotillo, CA
map 1.5 2009/10/05 19:46:00 36.377N 117.861W 5.6 12 km ( 8 mi) S of Keeler, CA
map 2.0 2009/10/05 19:36:54 36.394N 117.873W 6.1 10 km ( 6 mi) S of Keeler, CA
map 2.1 2009/10/05 19:34:03 39.813N 123.213W 5.0 4 km ( 2 mi) ENE of Covelo, CA
map 1.4 2009/10/05 19:09:46 32.715N 115.798W 2.0 13 km ( 8 mi) SW of Seeley, CA
map 1.4 2009/10/05 18:46:32 32.732N 115.847W 2.4 14 km ( 9 mi) E of Ocotillo, CA
map 1.0 2009/10/05 18:22:34 36.909N 115.579W 2.0 39 km (24 mi) NNE of Indian Springs, NV
map 1.1 2009/10/05 18:21:10 32.728N 115.847W 3.8 14 km ( 9 mi) E of Ocotillo, CA
map 1.0 2009/10/05 18:09:50 37.392N 117.003W 0.0 25 km (15 mi) ENE of Tokop, NV

[edit on 10/5/2009 by Hx3_1963]

Originally posted by kaskade
if you LIVE in california, what should you do/prepare? i think thats the most basic question EVERYONE IS TRYING TO ASK.
what could happeN? what should we expect? not a bunch of new numbers that 90% dont understand.

DOES NO ONE READ the pages and pages of people still asking the SAME QUESTION

IF you live anywhere near any area where natural 'disasters' may occur, including earthquake, flood, hurricane, tornado, etc...
you should
... make sure your 'disaster' rations will be accessible if that disaster occurs. So, basement storage might not be a good idea (if the house collapses), above ground might not be a good idea (if the tornado ...)... I'm sure you get the idea. So ONE stash may not be a good idea- redundancy / back-ups are a good idea. Some in the basement, some in the car, some in the shed out back, maybe some in the attic (I live in Cali so we have earthquakes and the attic is the last thing to hit the ground .)
... have sufficient fresh, potable / drinking (not distilled) water to last you and your family for 3 days minimum. You should seriously consider having enough potable water on hand to last 2 weeks.
... have non-perishible food-stuffs such as jerky and canned vegetables.
... have dried items such as beans, rice, pasta and the like may be advisable to have on hand but remember to have additional fresh water available for their use on top of the basic water needs. Distilled water is fine for use for these items.
... have iodized salt and multi-vitamin supplements on hand as well as aspirin, motrin, etc., and bandages and rubbing alcohol, as well as any medications you or your family may need such as inhalers (albuterol, etc.) and such.
... blankets and sleeping bags. Not just one or two blankets, but several blankets of varying thickness from 'sheet' to 'thermal' to "full-blown, keep you warm in a blizzard".
... have a wrench to turn off your gas and water mains easily accessible.
... have an AM/FM radio and batteries for it AND buy a FRS/GMRS walkie-talkie setup and have several sets of batteries (at least enough to allow for 5 battery changes) for it too.

And it continues...that 5.3 Pacific Rise Quake woke 'er up!

quake.usgs.gov...

map 1.6 2009/10/05 20:58:57 36.396N 117.879W 4.0 10 km ( 6 mi) S of Keeler, CA
map 1.7 2009/10/05 20:48:33 36.396N 117.880W 6.1 10 km ( 6 mi) S of Keeler, CA
map 1.3 2009/10/05 20:38:31 34.807N 116.292W 6.5 15 km (10 mi) NW of Ludlow, CA
map 2.7 2009/10/05 20:24:47 36.401N 117.857W 3.1 10 km ( 6 mi) S of Keeler, CA
map 1.4 2009/10/05 20:08:58 38.822N 122.762W 1.8 4 km ( 2 mi) WSW of Cobb, CA
map 1.1 2009/10/05 19:57:35 35.555N 117.369W 10.5 23 km (15 mi) S of Searles Valley, CA

[edit on 10/5/2009 by Hx3_1963]

Out of curiousity....

Is there any chance that the previous 100-150 or so years of mining silver, lead, zinc and marble, current 'mining' of salts (such as halite, trona, and others), or actions resulting from the settlement(s) of LADWP suits requiring re-establishing water flow to Owens Lake and such might have something to do with this?

reply to post by abecedarian


coso volcanic field is just south of owens lake.
it's had a few eqs in the last week

By the way, for those interested, here is a webicorder view of CWC station, BHZ channel:

www.iris.edu...

Originally posted by abecedarian
Some info on a large quake in the area:
1872 Lone Pine Earthquake

The Great Lone Pine earthquake was one of the largest earthquakes to hit California in recorded history. The quake struck on March 26, 1872 and its epicenter was near Lone Pine, California in Owens Valley. The true size of this earthquake is not known, but historical evidence detailing the damage it caused in settlements and landforms near the epicenter, and the geographic extent to which noticeable movement was felt, leads researchers to estimate a Richter magnitude of 7.6 to 8 or greater — similar in size to the 1906 San Francisco earthquake.

...

The quake resulted from sudden vertical (15-20 feet) and right-lateral (35-40 feet) movement on the Lone Pine Fault and part of the Owens Valley Fault. These faults are part of a twin system of normal faults that run along the base of two parallel mountain ranges; the Sierra Nevada on the west and Inyo Mountains on the east flank of Owens Valley.

...

Researchers later estimated that similar earthquakes occur on the Lone Pine fault every 3,000-4,000 years. However, the Lone Pine fault is only one of many faults on two parallel systems of faults mentioned above.

Lone Pine is within 20-30 miles N to NNE of the epicenters of the recent swarm.

[edit on 10/4/2009 by abecedarian]

That quake occurred 2 days after a full moon too.

reply to post by Hx3_1963
On and on and on...(and I can't access GEE...off-line data base?)

1.7 2009/10/06 11:10:20 36.410N 117.845W 1.2 9 km ( 6 mi) SSE of Keeler, CA
4.1 2009/10/06 11:06:34 36.419N 117.851W 0.2 8 km ( 5 mi) SSE of Keeler, CA
1.4 2009/10/06 11:01:45 35.939N 117.174W 7.0 26 km (16 mi) NE of Trona, CA
2.1 2009/10/06 10:40:39 36.415N 117.874W 2.3 8 km ( 5 mi) S of Keeler, CA
2.0 2009/10/06 10:26:16 36.419N 117.850W 3.0 8 km ( 5 mi) SSE of Keeler, CA
2.1 2009/10/06 10:16:57 36.388N 117.875W 5.2 11 km ( 7 mi) S of Keeler, CA
2.5 2009/10/06 09:32:30 36.411N 117.843W 5.7 9 km ( 6 mi) SSE of Keeler, CA
2.6 2009/10/06 09:31:15 36.408N 117.874W 4.1 9 km ( 6 mi) S of Keeler, CA
1.9 2009/10/06 08:00:51 36.381N 117.874W 1.7 12 km ( 7 mi) S of Keeler, CA
1.6 2009/10/06 05:31:24 36.389N 117.858W 3.5 11 km ( 7 mi) S of Keeler, CA
1.8 2009/10/06 04:47:26 36.395N 117.859W 0.4 10 km ( 6 mi) S of Keeler, CA
1.5 2009/10/06 01:23:46 36.398N 117.871W 5.1 10 km ( 6 mi) S of Keeler, CA
1.7 2009/10/06 00:51:21 36.404N 117.872W 2.1 9 km ( 6 mi) S of Keeler, CA
1.4 2009/10/05 22:08:27 36.382N 117.855W 5.7 12 km ( 7 mi) S of Keeler, CA

[edit on 10/6/2009 by Hx3_1963]

[Partially OT]

Can you imagine the excitement if all this happened on Yellowstone park?
The last December/January earthquake swarm wasn't as energetic as this one in California.

[/Partially OT]

By the way, GEE works fine on my pc, the last 4.1 caused a 293 microns/sec spike on CI.CWC.BHZ.

* A 5.2 would have therefore caused on this station about a 3.0 mm/sec spike, since for each unit in magnitude, ground movement increases 10 times.

[edit on 2009-10-6 by Shirakawa]

reply to post by Shirakawa
Yeah we'd of been OMG'in even more than we already were...

I probably need to do some kind of re-start on my systems...

I've been hammering it pretty hard the past couple of days!

That 4.1M showed nice on that link you provided!

A revision:

1.4 2009/10/06 11:48:09 35.051N 118.324W 0.0 13 km ( 8 mi) WNW of Mojave, CA
1.7 2009/10/06 11:10:20 36.410N 117.836W 1.9 9 km ( 6 mi) SSE of Keeler, CA
4.0 2009/10/06 11:06:34 36.414N 117.836W 1.6 9 km ( 5 mi) SSE of Keeler, CA

[edit on 10/6/2009 by Hx3_1963]

seems like they aren't coming as often now at central cal. but when they do, they are in the 4. range. just had another 4.0

And on... :shk:

1.7 2009/10/06 15:43:17 36.408N 117.850W 4.1 9 km ( 6 mi) SSE of Keeler, CA
2.9 2009/10/06 15:37:54 35.066N 118.915W 15.6 5 km ( 3 mi) E of Mettler, CA
1.6 2009/10/06 15:10:50 36.410N 118.052W 22.3 10 km ( 6 mi) NNW of Cartago, CA
1.8 2009/10/06 14:46:25 36.385N 117.868W 4.0 11 km ( 7 mi) S of Keeler, CA
1.7 2009/10/06 14:45:46 36.393N 117.867W 5.8 11 km ( 7 mi) S of Keeler, CA
2.1 2009/10/06 14:13:46 36.395N 117.874W 4.7 10 km ( 6 mi) S of Keeler, CA

This just in from Caltech:

Our station tech and our earthquake analysts have concluded there is an
issue with the digitizer of the station. Sadly they cannot use data from
this station to time events in the region. So yes, there is an issue
with the instrumentation - very likely we will have to change the
digitizer.


Regards,

By the digitizer I would assume they mean the A/D converter, and the funny thing is, I was just about to email them suggesting exactly that. I obtained a manual to the STS-2 seismometer, and reading through it and some other things I began to suspect it.

So yep, it appears now that I was 100% correct about the unit malfunctioning. Also, if you'll dig up the webicorder graphs of the BHN and BHE channels, which another poster conveniently did not show you, you'll see that the center lines are quite unstable.

Here's BHN:
www.iris.edu...

and here's BHE:
www.iris.edu...

I am no expert by any means at this, and I don't profess to be. But I do know enough to know that when you see symmetrical patterns like that of any kind for extended periods of time it is usually an indication of trouble and malfunction. Remember, the earth and the wind move in much more random patterns, and the patterns are always non-symmetrical when everything is working right.

reply to post by TrueAmerican
Yep...one fer the home team there

A fault in a quad channel differential op amp input would do it

Operational Amplifiers:
www.bcae1.com...
(see OP AMP Inverters section for similar display)

OP AMP Error Correction:

An op amp is commonly used in a circuit where error correction is required. Op amps can't (generally) supply a large amount of current at its output. If a signal is fed to the positive input of an op amp and the op amp is driving a circuit which CAN supply a large amount of current (like the regulator that we will work with later on this page), the output of the whole system can be fed back into the negative input of the op amp. This will allow the op amp to compare the output (of the whole system) to the input signal and correct as needed. If the op amp is used in a circuit which needs little current at its output, the op amp can still monitor the output and correct as needed.

It was a fascinating swarm none the less and deserved some attention...

[edit on 10/7/2009 by Hx3_1963]