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Old 04-07-2008, 07:36 AM
 
Location: A little suburb of Houston
3,702 posts, read 18,213,847 times
Reputation: 2092

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Earthquake reported south of San Antonio | Chron.com - Houston Chronicle (broken link)

Magnitude 3.7 - SOUTHERN TEXAS (broken link)

SE of San Antonio

Rather a strong one for these parts. The one last year near College Station was only 2. something.
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Old 04-07-2008, 07:48 AM
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Location: Ohio
17,107 posts, read 38,108,718 times
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I heard it discussed on the radio. The sheriff's office in Wilson County received several calls from people who felt their houses shake and were wondering what had happened. Doesn't sound like there was any damage.

US Geological Survey (broken link) plots the epicenter as:
  • 6 miles SW of Falls City, TX
  • 10 miles S of Poth, TX
  • 12 miles W of Karnes City, TX
  • 45 miles SE of San Antonio, TX
  • 279 miles SSW of Dallas, TX
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Old 04-07-2008, 09:06 AM
 
Location: Dallas
808 posts, read 3,647,825 times
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Is there any chance this seismic activity was caused by drilling activities in that area? I know that there has been a lot of drilling going on around there.
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Old 04-07-2008, 10:29 AM
 
Location: A little suburb of Houston
3,702 posts, read 18,213,847 times
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This one was the real thing according to the geologicl survey. The ones caused by drilling seem to be smaller anyway. Looked up the map on Google earth. Center was in the middle of a pasture surrounded by more pastureland.
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Old 04-07-2008, 12:04 PM
 
Location: Dallas
808 posts, read 3,647,825 times
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Quote:
Originally Posted by Poltracker View Post
This one was the real thing according to the geologicl survey. The ones caused by drilling seem to be smaller anyway. Looked up the map on Google earth. Center was in the middle of a pasture surrounded by more pastureland.
Interesting. Thanks for the info. Is there a fault line or anything in that area?
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Old 04-07-2008, 02:09 PM
 
238 posts, read 766,999 times
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Quote:
Originally Posted by awecelot View Post
Is there any chance this seismic activity was caused by drilling activities in that area? I know that there has been a lot of drilling going on around there.
If an earthquake gets caused by oil drilling, they'd have to drill pretty damn hard just to get anything on the Richter scale. Anything short of a thousand people screaming at each other couldn't even do that. Your guess is about as anybody else's. It's got to be something else out there.
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Old 04-07-2008, 02:56 PM
 
Location: A little suburb of Houston
3,702 posts, read 18,213,847 times
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Sometimes drillers use explosive charges and that can sure rattle house and make you think it is an earthquake. The ffects are general more local than a rattle caused by an actual earthquake.

awecelot, I think there are 2 faults out in that area. One I think is the Llano uplift but I can't be sure.
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Old 04-07-2008, 03:04 PM
 
Location: Somewhere in Texas
5,406 posts, read 13,276,665 times
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See the link below. There was another one in Texas within the past 6 months nearer to the Panhandle.

Recent Earthquakes in Central US - Index Map

Don't forget how the Hill Country was formed in 3 1/2 minutes. Millions of years ago, a violent earthquake made it what it is today.
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Old 04-07-2008, 04:34 PM
 
Location: Austin 'burbs
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Wow, I had no idea there were earthquakes here!
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Old 04-07-2008, 04:51 PM
 
Location: Somewhere in Texas
5,406 posts, read 13,276,665 times
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Quote:
Originally Posted by Jenbar View Post
Wow, I had no idea there were earthquakes here!
I don't think we really have too much to worry about though. Good grief if we have to worry about them and tornadoes, I'm packing and leaving.

I actually didn't know it either until a few years ago when I was doing some research.
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