How one US state went from two quakes a year to 585 (Oklahoma, fracking) [View all]
Last edited Wed Sep 23, 2015, 06:57 AM - Edit history (1)
How one US state went from two quakes a year to 585
The central US state of Oklahoma has gone from registering two earthquakes a year to nearly two a day and scientists point to a controversial culprit: wastewater injection wells used in fracking.
Located in the middle of the country, far from any major fault lines, Oklahoma experienced 585 earthquakes of a magnitude of 3.0 or greater in 2014. That's more than three times as many as the 180 which hit California last year.
As of last month, Oklahoma has already experienced more than 600 quakes strong enough to rattle windows and rock cars. The biggest was a 4.5-magnitude quake that hit the small town of Crescent.
.... From 1975 to 2008, the state experienced anywhere from zero to three earthquakes a year which registered at 3.0 or higher. Then the numbers jumped: there were 20 in 2009, 35 in 2010, 64 in 2011, 35 in 2012, 109 in 2013 and 585 in 2014.
More:
http://news.yahoo.com/one-us-state-went-two-quakes-585-054259418.html
The source of this article is Agence France-Presse (AFP). Yahoo is just the news aggregator which posts news from multiple sources, e.g. similarly news.google.com
Even the Oklahoma governor has accepted the link between fracking (particularly the injection of waste water into the ground) and earthquakes.
Anyway, if your crazy uncle or brother-in-law questions the negative environmental impact of fracking, you can point out that even the Republican government of Oklahoma now takes it very seriously.
Who knows how much damage is being caused statewide through the shaking that cracks foundations, concrete, walls, ... maybe more than the value of the oil/gas being extracted?
[font color = red]On Edit:[/font] clarifying the source of the article. And some more on Oklahoma governor Mary Fallin's acknowledgement of science.