Earthquake in OK could have been man-made.

ShooterMcGavin

Go back to your shanties.
May 25, 2005
18,028
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#1
http://www.news9.com/story/21811334/ou-profs-man-made-earthquake-theory-gains-national-attention

OKLAHOMA CITY -
An OU professor's claim that last year's 5.7 earthquake in Prague's was man-made is gaining national attention.
The report, published in the journal Geology, is shaking things up when it comes to the debate over if large earthquakes can be caused by injecting water into the earth. The earthquake was the largest recorded in Oklahoma. Fourteen homes were destroyed and two people were injured.
Dr. Katie Karanen put seismographs in the ground the day after the first quake then used that data for her research. She along with seismologists from Columbia University and the US Geological Survey found the quake was caused by wastewater from a nearby oil field injected back into the ground.
The significance: Unlike other quakes that are caused shortly after water was injected, this time the injection had been going on for 20 years.
"Here it appears that the fluid was not able to move far away from the well and so as you add in more and more fluid, the pressure rose steadily." Karanen explained.
As evidence she points to steadily growing pressure in the well and the close proximity the injection wells to the November quakes.
However Seismologists with the Oklahoma Geological Survey, also on the OU campus, in the exact same building and using the exact same data, found something completely different.
"It's the position of researchers here at the OGS that these earthquakes are completely consistent with naturally occurring earthquakes," said Seismologist Austin Holland. "We haven't seen the data that would force us to say otherwise."
Holland wrote a response to Keranen's paper in which he says there is no good correlation between the actual injection and the timing of the quake. In addition he says the quake's location and behavior are consistent with an earthquake caused by nature, not man.
Holland also says is new 3D seismic data that was not available in Karanen's research that also suggest the water injected could not have caused the earthquake.
I remember this quake. Fucking freaked me out.
 

CougarHunter

Lying causes cat piss smell.
Mar 2, 2006
10,590
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KC Metro
#2
I felt it up here in Kansas City.

I was damn near kilt.
 

Ballbuster1

In The Danger Zone...
Wackbag Staff
Aug 26, 2002
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#12
Oil drillers are injecting waste water back into the ground. I'm shocked the anti-oil shit heels haven't locked onto this.
So they get this from taking oil and water from the ground but
just returning the water is a problem? Sounds hokey to me.
 

Party Rooster

Unleash The Beast
Apr 27, 2005
40,304
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#13
So they get this from taking oil and water from the ground but
just returning the water is a problem? Sounds hokey to me.
Their "theory" is that you've altering the natural pressure. You know, like when you change one water hose on an old car how the rest of them seem to get messed up afterwards.
 

mr. sin

Registered User
Mar 30, 2005
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#15
Record Number of Oklahoma Tremors Raises Possibility of Damaging Earthquakes


http://www.usgs.gov/newsroom/article.asp?ID=3880&from=rss_home


The rate of earthquakes in Oklahoma has increased by about 50 percent since October 2013, significantly increasing the chance for a damaging quake in central Oklahoma.

In a new joint statement by the U.S. Geological Survey and Oklahoma Geological Survey, the agencies reported that 183 earthquakes of magnitude 3.0 or greater occurred in Oklahoma from October 2013 through April 14, 2014. This compares with a long-term average from 1978 to 2008 of only two magnitude 3.0 or larger earthquakes per year. As a result of the increased number of small and moderate shocks, the likelihood of future, damaging earthquakes has increased for central and north-central Oklahoma.

“We hope that this new advisory of increased hazard will become a crucial consideration in earthquake preparedness for residents, schools and businesses in the central Oklahoma area,” said Dr. Bill Leith, USGS Senior Science Advisor for Earthquakes and Geologic Hazards. “Building owners and government officials should have a special concern for older, unreinforced brick structures, which are vulnerable to serious damage during sufficient shaking.”

The joint statement indicates that a likely contributing factor to the increase in earthquakes is wastewater disposal by injection into deep geologic formations. The water injection can increase underground pressures, lubricate faults and cause earthquakes – a process known as injection-induced seismicity. Much of this wastewater is a byproduct of oil and gas production and is routinely disposed of by injection into wells specifically designed and approved for this purpose. The recent earthquake rate changes are not due to typical, random fluctuations in natural seismicity rates.

Oklahoma’s heightened earthquake activity since 2009 includes 20 magnitude 4.0 to 4.8 quakes, plus one of the two largest recorded earthquakes in Oklahoma’s history – a magnitude 5.6 earthquake that occurred near Prague on Nov. 5, 2011, which damaged a number of homes and the historic Benedictine Hall at St. Gregory's University in Shawnee.

As a result of the increased seismicity, the Oklahoma Geological Survey has increased the number of monitoring stations and now operates a seismograph network of 15 permanent stations and 17 temporary stations. Both agencies are actively involved in research to determine the cause of the increased earthquake rate and to quantify the increased hazard in central Oklahoma.

Information about earthquake preparedness can be found at the following websites: http://www.ready.gov/earthquakes and http://www.shakeout.org/centralus/.