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Alberta scientists probe possible human causes of earthquake

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southwestforests
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14 Nov 2009, 5:56 pm

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CALGARY — Could oil and gas exploration — or the burial of climate-changing carbon dioxide deep underground — trigger earthquakes in the normally calm crust of Alberta?


http://www.calgaryherald.com/news/Alberta+scientists+probe+possible+human+causes+earthquakes/2221401/story.html

Quote:
Scientists at the U of C's geoscience department hope to learn more about what causes these poorly understood subterranean movements by installing a series of monitoring devices across Alberta.


Earthquakes occur naturally but can also be human-induced, Dave Eaton, U of C head of geoscience, said Friday.


He said he wants to know more about the impact of the oil and gas industry on seismic activity — and better understand the potential seismic effects of underground CO2 storage, a largely untested technology seen by many governments as a magic bullet to arrest greenhouse gas-induced climate change.


Be interesting to see what comes of this.


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Jacoby
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15 Nov 2009, 3:17 am

This has to be a joke.



Diamonddavej
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18 Nov 2009, 2:48 pm

Human induced (facilitated) seismicity is a well known phenomena. Here is an example, a new dam and lake induced several earthquakes:

"Reservoir induced seismicity in the vicinity of Lake Bhatsa, Maharashtra, India
Patil, D. N.; Bhosale, V. N.; Guha, S. K.; Powar, K. B.
Physics of the Earth and Planetary Interiors, Volume 44, Issue 2, p. 73-81.

The township of Khardi, located 7 km northwest of the Bhatsa dam, in the western part of the Deccan Volcanic Province, was subjected to earthquakes of magnitudes 4.0 and 4.8 on August 17, 1983 and September 15, 1983, respectively. The Khardi-Bhatsa area is located to the east of the Panvel flexure axis and on a northwest-southeast trending belt, forming an extension of the Ghod lineament of the Deccan Plateau. The earth tremors at Khardi followed impoundment of water, during June-July 1983, behind the recently constructed Bhatsa dam, and the rise in lake-level from about 92 to 110 m above MSL.

It is suggested that percolation of water during this period along fractures led to a build-up of pore-fluid pressure which was transmitted down to a stress zone with a potential to slip. Consequent reduction in effective stress (tectonic stress-pore fluid pressure) induced the earthquakes. Available seismic data for the Khardi-Bhatsa area suggest that b-values can also be used as a `short term' precursor for detecting impending, strong reservoir-induced earth tremors in the area."



sartresue
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19 Nov 2009, 7:27 pm

Did the earth move for you? topic

You reap what you sow.


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ruveyn
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20 Nov 2009, 12:20 pm

southwestforests wrote:
Quote:
CALGARY — Could oil and gas exploration — or the burial of climate-changing carbon dioxide deep underground — trigger earthquakes in the normally calm crust of Alberta?


http://www.calgaryherald.com/news/Alberta+scientists+probe+possible+human+causes+earthquakes/2221401/story.html

Quote:
Scientists at the U of C's geoscience department hope to learn more about what causes these poorly understood subterranean movements by installing a series of monitoring devices across Alberta.


Earthquakes occur naturally but can also be human-induced, Dave Eaton, U of C head of geoscience, said Friday.


He said he wants to know more about the impact of the oil and gas industry on seismic activity — and better understand the potential seismic effects of underground CO2 storage, a largely untested technology seen by many governments as a magic bullet to arrest greenhouse gas-induced climate change.


Be interesting to see what comes of this.


The next thing that will happen is blaming eclipses on humans.

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hiker7
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24 Nov 2009, 12:00 pm

Didn't Tesla come up with a device to create earthquakes?