Answers on link between injection wells and quakes

States where hydraulic fracturing is taking place are experiencing unprecedented earthquake activity.

The drilling method involves sending high-pressure blasts of water, sand and chemicals into deep shale rock formations to free up oil and gas. The process produces millions of gallons of wastewater which operators send underground into .

Scientists are researching whether these injections are causing quakes.

A study published earlier this month in the journal Science suggests that just four injection wells in Oklahoma have caused about 20 percent of the quakes from the eastern border of Colorado to the Atlantic coast since 2008.

However, seismologists and the oil and gas industry stress that the number of earthquakes tied to injection wells is small relative to the thousands of wells in operation in recent decades.


Explore further

USGS says seven small earthquakes shake central Oklahoma

Journal information: Science

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Citation: Answers on link between injection wells and quakes (2014, July 15) retrieved 17 June 2019 from https://phys.org/news/2014-07-link-wells-quakes.html
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Jul 15, 2014
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Jul 15, 2014
Who cares? I'm making money!

Jul 15, 2014
Also in recent news, Reagan defeats Carter by a landslide.

This kind of thing is why we haven't encountered intelligent life elsewhere in the universe:
Either 1. This kind of thing killed them off in a evolutionary eyeblink, or
2. They eroded their land into the sea, and electronics hate seawater.

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