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Big quake question: Are they getting worse?
MSNBC ^ | 02/27/10

Posted on 02/27/2010 6:36:15 PM PST by winoneforthegipper

Seismic shockers are to be expected, but planet seems to be more active.

SNIP

While the Chilean earthquake wasn't directly related to Japan's 7.0-magnitude temblor, the two have some factors in common.

For one, any seismic waves that made their way from Japan to the Chilean coast could play a slight role in ground-shaking.

"It is too far away for any direct triggering, and those distances also make the seismic waves as they would pass by from the Haiti or Japan events pretty small because of attenuation," Arrowsmith told LiveScience. (Attenuation is the decrease in energy with distance.) "Nevertheless, if the Chilean fault surface were close to failure, those small waves could push it even closer."

(Excerpt) Read more at msnbc.msn.com ...


TOPICS: News/Current Events
KEYWORDS: earthquakes; geology; geoscience; trends; usgs
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To: winoneforthegipper

I disagree. Earthquakes and other activity has been going on for millions of years. You will have to compare earth movement from previous epochs. Earthquakes in subduction zones are much more violent.Nine out of the ten largest earthquakes to occur in the last 100 years were subduction zone events


41 posted on 02/27/2010 7:06:44 PM PST by ErnstStavroBlofeld ("I have learned to use the word "impossible" with the greatest caution."-Dr.Wernher Von Braun)
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To: American Constitutionalist

Are they manipulating the record of earthquakes over the last 113 years? They seem to be coming in cycles.


42 posted on 02/27/2010 7:07:03 PM PST by listenhillary (the only reason government wants to be our provider is so it may become our master)
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To: winoneforthegipper

A human lifetime is a statistically insignificant period of time for evaluating earth’s seismic activity.

The average uneducated American thinks most of history has occurred in his lifetime. If he’s a lib, it’s all during his lifetime.


43 posted on 02/27/2010 7:07:10 PM PST by ChildOfThe60s (If you can remember the 60s, you weren't really there.)
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To: HerrBlucher

” ...I don’t have any data to prove that, but I don’t need it. These days all you have to do is just state something is true, and it is. “

No, actually it’s a lot more complicated than that. You have to say it over and over and over again, very loudly, drowning out anyone else who disagrees, while steadfastly and also very loudly asserting that there is no disagreement with your position, and that anyone who says there is is against science, all the while bamboozling damn near everybody in the media to help you drum it into people that this is what all the good people who care about adorable little kittens believe, and only selfish, Snidely Whiplash types who should be tried for Crimes Against Humanity would dare to disagree, and get them all fired and intimidated in the name of Objective Science, for daring to question your nonexistent data.

It’s a lot of work, but the pay is outstanding.


44 posted on 02/27/2010 7:08:15 PM PST by Humble Servant (see y'all in the Gulag.)
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To: HerrBlucher

” BTW, Yellowstone is going to blow tomorrow and we are all going to die. “

It’s very curious to me that lately I find that sort of thing comforting.


45 posted on 02/27/2010 7:10:09 PM PST by Humble Servant (see y'all in the Gulag.)
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To: listenhillary

Arrowhead agrees there is all cyclical, just like climatic responses to general weather patterns.

We are heading towards a peak period though.

What I agree besides that, is what s/waves at distance can do to a teetering fault.

So we three are in agreement...lol


46 posted on 02/27/2010 7:11:01 PM PST by winoneforthegipper ("If you can't ride two horses at once, you probably shouldn't be in the circus" - SP)
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To: Mrs. Don-o

I

love

it

!

Best laugh I’ve had in a week!


47 posted on 02/27/2010 7:11:06 PM PST by Humble Servant (see y'all in the Gulag.)
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To: winoneforthegipper

As far as attenuation goes, there might be some other factor at play with big earthquakes. Something like a “mirror” effect, but *slower* than the frequency of the earthquake itself, which is a puzzler.

That is, when there is a major earthquake on one side of the Ring of Fire, it takes a given length of time for the vibration of the earthquake to get to the other side. But then, after that vibration has long dissipated, another large earthquake happens, vaguely “opposite” where the first earthquake hit. Perhaps a day or two, to a week later.

Importantly, it is not “even”, because the Ring of Fire is a rough circle on the surface of a sphere, with a big fault right down the middle of it. So say there is a big earthquake in the South Pacific near Australia. It *could* reflect to the “other side” of the Ring of Fire anywhere from Chile to Alaska.

And it is not a perfect system, in that it doesn’t happen every time, but probably only in those places that are primed and ready for an earthquake to happen.

But if it triggers the mirror earthquake, why the delay?


48 posted on 02/27/2010 7:15:36 PM PST by yefragetuwrabrumuy
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To: ChildOfThe60s

Geological record for earthquakes is much more factual than say climate record but I still agree with ya!


49 posted on 02/27/2010 7:16:57 PM PST by winoneforthegipper ("If you can't ride two horses at once, you probably shouldn't be in the circus" - SP)
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To: SamAdams76

“For me, I’ve always wanted to run around Times Square naked singing the Talking Heads song “Life During Wartime” at the top of my lungs.

I’m headed to Manhattan next week before it is too late.”

Gonna be awful cold on that run.


50 posted on 02/27/2010 7:20:21 PM PST by Beowulf9
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To: listenhillary

It went down when Reagan was in office.


51 posted on 02/27/2010 7:20:30 PM PST by presently no screen name
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To: Humble Servant
Yep.

sw

52 posted on 02/27/2010 7:21:12 PM PST by spectre ( Spectre's wife)
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To: yefragetuwrabrumuy
Exactly, my impression(nonprofessional)is that an S/wave gently persuades an area closer to fault.
53 posted on 02/27/2010 7:22:15 PM PST by winoneforthegipper ("If you can't ride two horses at once, you probably shouldn't be in the circus" - SP)
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To: yefragetuwrabrumuy

More theories

Quakes triggered by tides of solid Earth
Study: Earthquake probability enhanced as the moon passed overhead
(April 2009)

http://www.msnbc.msn.com/id/30070805/


54 posted on 02/27/2010 7:24:07 PM PST by listenhillary (the only reason government wants to be our provider is so it may become our master)
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To: winoneforthegipper
Magnitude 4.4 Quake Shakes Oklahoma
Saturday, February 27, 2010

SPARKS, Okla. — A magnitude 4.4 earthquake has hit Lincoln County, but no injuries and little property damage are reported, the U.S. Geological Survey says.

The agency said the earthquake hit about three miles east of Sparks about 4:22 p.m. Saturday. Sparks is between Chandler and Meeker.

A Lincoln County 911 dispatcher said no injuries and only minor property damage were reported.

People also reported feeling the temblor in Norman, Prague, Seminole, and as far as Tulsa.

55 posted on 02/27/2010 7:24:24 PM PST by spectre ( Spectre's wife)
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To: American Constitutionalist
Actually weather and tectonics are two major hobbies of mine.

The east coast storms are not the coming of Gog-Magog but more related to some fascinating oscillations in the pacific and atlantic that have times aligned perfectly but not in our life times.

Great stuff, but I am with you on the Religious front to some degree, just not on these two issues.

56 posted on 02/27/2010 7:24:57 PM PST by winoneforthegipper ("If you can't ride two horses at once, you probably shouldn't be in the circus" - SP)
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To: presently no screen name

See what a good president he was?


57 posted on 02/27/2010 7:26:46 PM PST by listenhillary (the only reason government wants to be our provider is so it may become our master)
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To: listenhillary

I believe earth’s magnetic fields, tides and such have a great impact on geological experiences.

Note to day were astronomically low tides in the eastern pacific.


58 posted on 02/27/2010 7:26:53 PM PST by winoneforthegipper ("If you can't ride two horses at once, you probably shouldn't be in the circus" - SP)
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To: winoneforthegipper

Makes sense. The earth seems pretty solid, but it is not as solid as many would think. 12” of crust movement with the tide of the moon is pretty huge if you think about how much mass it is moving.


59 posted on 02/27/2010 7:30:02 PM PST by listenhillary (the only reason government wants to be our provider is so it may become our master)
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To: winoneforthegipper

Owl Gore and his huge body is stomping on the earth and cracking the fragile mantle layer,


60 posted on 02/27/2010 7:41:40 PM PST by MtnClimber (A government powerful enough to determine my quality-adjusted life years is no longer limited govt!)
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