My sister lives in Baltimore and their chimney (3 story home) toppled over and landed on the drive way. Lucky for everyone no cars were parked there.
I felt nothing in Chicago
I felt nothing in Chicago
Earthquake!
- Thread starter Tom NJ
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I can recall the Whittier quake (1987) and the Northridge quake (1994) and while they were both mag 6's they felt very different (and was about the same distance from the epicenter of each). The key is ground acceleration.
Here is some interesting historical stuff:
http://en.wikipedia.org/wiki/Peak_ground_acceleration
Anything over 1g readily topples structures, especially if the design relies on gravity to hold things together.
Here is some interesting historical stuff:
http://en.wikipedia.org/wiki/Peak_ground_acceleration
Anything over 1g readily topples structures, especially if the design relies on gravity to hold things together.
There goes the stock market ...Again.
The sky is falling the sky is falling!!! Grab your oil stash and your children and fish bowl!!!! Time for a strong one.
Be careful discussing the frac'ing relationship, since it's so contentious. The Colorado seismicity may be triggered by wastewater injection--likely not the hydraulic fracturing process.
Note that I wrote "triggered," implying that there is preexisting tectonic stress that would have led to an earthquake eventually, but that injection advanced its occurrence (this is a well documented phenomenon).
The other situation is "induced" sesmicity, where the stress comes almost entirely from the injected fluid. This is unlikely for a large earthquake because of the principle of energy conservation.
I advise against using the word "caused."
Note that I wrote "triggered," implying that there is preexisting tectonic stress that would have led to an earthquake eventually, but that injection advanced its occurrence (this is a well documented phenomenon).
The other situation is "induced" sesmicity, where the stress comes almost entirely from the injected fluid. This is unlikely for a large earthquake because of the principle of energy conservation.
I advise against using the word "caused."
Originally Posted By: FL_Rob
There goes the stock market ...Again.
What do you mean, the DOW 30 is up 300 pts!
There goes the stock market ...Again.
What do you mean, the DOW 30 is up 300 pts!
Originally Posted By: CATERHAM
Originally Posted By: FL_Rob
There goes the stock market ...Again.
What do you mean, the DOW 30 is up 300 pts!
According to Paul Krugman, natural disasters are fantastic for the economy!
Originally Posted By: FL_Rob
There goes the stock market ...Again.
What do you mean, the DOW 30 is up 300 pts!
According to Paul Krugman, natural disasters are fantastic for the economy!
I agree; think of it a "natural" stimulus package!
Quote:
Significant historical earthquakes have occurred in the Trinidad region in 1966 and 1973. Reexamination of felt reports from these earthquakes suggest that the 1973 events may have occurred in the same area, and possibly on the same fault, as the 2001 swarm.
The fracking is nothing but speculation in both of your sources. Nothing putting a finger on it at all.
Significant historical earthquakes have occurred in the Trinidad region in 1966 and 1973. Reexamination of felt reports from these earthquakes suggest that the 1973 events may have occurred in the same area, and possibly on the same fault, as the 2001 swarm.
Originally Posted By: CATERHAM
I agree; think of it a "natural" stimulus package!
Then we should continually demolish entire cities to create jobs....
I agree; think of it a "natural" stimulus package!
Then we should continually demolish entire cities to create jobs....
Originally Posted By: mpvue
felt in lehigh valley PA.
+ 1 on that one!!
felt in lehigh valley PA.
+ 1 on that one!!
Originally Posted By: Drew99GT
Here Tempest, this is from Fox News so you'll think it's more legitimate.
http://www.foxnews.com/scitech/2011/03/01/fracking-earthquakes-arkansas-man-experts-warn/
Here Tempest, this is from Fox News so you'll think it's more legitimate.
http://www.foxnews.com/scitech/2011/03/01/fracking-earthquakes-arkansas-man-experts-warn/
Originally Posted By: Tempest
Originally Posted By: CATERHAM
I agree; think of it a "natural" stimulus package!
Then we should continually demolish entire cities to create jobs....
Shouldn't take a natural disaster to put one forward but it always does! LOL
Originally Posted By: CATERHAM
I agree; think of it a "natural" stimulus package!
Then we should continually demolish entire cities to create jobs....
Shouldn't take a natural disaster to put one forward but it always does! LOL
Originally Posted By: Stu_Rock
Be careful discussing the frac'ing relationship, since it's so contentious. The Colorado seismicity may be triggered by wastewater injection--likely not the hydraulic fracturing process.
Note that I wrote "triggered," implying that there is preexisting tectonic stress that would have led to an earthquake eventually, but that injection advanced its occurrence (this is a well documented phenomenon).
The other situation is "induced" sesmicity, where the stress comes almost entirely from the injected fluid. This is unlikely for a large earthquake because of the principle of energy conservation.
I advise against using the word "caused."
+1
Be careful discussing the frac'ing relationship, since it's so contentious. The Colorado seismicity may be triggered by wastewater injection--likely not the hydraulic fracturing process.
Note that I wrote "triggered," implying that there is preexisting tectonic stress that would have led to an earthquake eventually, but that injection advanced its occurrence (this is a well documented phenomenon).
The other situation is "induced" sesmicity, where the stress comes almost entirely from the injected fluid. This is unlikely for a large earthquake because of the principle of energy conservation.
I advise against using the word "caused."
+1
Originally Posted By: Drew99GT
Here Tempest, this is from Fox News so you'll think it's more legitimate.
http://www.foxnews.com/scitech/2011/03/01/fracking-earthquakes-arkansas-man-experts-warn/
Here Tempest, this is from Fox News so you'll think it's more legitimate.
http://www.foxnews.com/scitech/2011/03/01/fracking-earthquakes-arkansas-man-experts-warn/
Man, I ALWAYS miss out. Not like I really want to experience an earthquake, but I have never in my life felt so much as a tremor (and realized it). I remember fifth or sixth grade, there was a nearby earthquake, everyone was yapping about it, and I had no idea what happened. It's happened a couple/few other times as well.
But here I am in Charlotte, NC, quite close to the origin, and didn't feel a thing again. Yet people in NJ and NY felt it? Maybe my butt is just numb...
But here I am in Charlotte, NC, quite close to the origin, and didn't feel a thing again. Yet people in NJ and NY felt it? Maybe my butt is just numb...
numb nutted
Originally Posted By: 229
numb nutted
Hilarious. You oughtta take that show on the road, JO.
numb nutted
Hilarious. You oughtta take that show on the road, JO.
hehe, LOL
Could not resist
I appologize!
Could not resist
I appologize!
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