TribLIVE

| USWorld


 
Larger text Larger text Smaller text Smaller text | Order Photo Reprints

Oklahoma rattled by increase in earthquakes

Daily Photo Galleries

By USA Today
Sunday, April 13, 2014, 8:12 p.m.
 

Oklahoma, a state known more for tornadoes than seismic shifts, is becoming all too familiar with earthquakes.

In the week that ended on Saturday, 48 quakes larger than the magnitude of 2.5 struck, said Paul Caruso, a geophysicist with the U.S. Geological Survey. In the past month, there have been 157 quakes larger than magnitude 2.5.

“We've never seen anything like this in Oklahoma,” Caruso said.

The recent shaking has rattled residents' nerves — and has led to speculation and debates about what's behind the quakes. Some people have taken to social media and public forums, contending that hydraulic fracturing, known as fracking, and the deep-injection wells used for disposal of fracking wastewater could be causing the uptick.

A Oklahoma Geological Survey report in February says it “has not ruled out that some earthquakes may have a relationship to oil and gas activities such as water disposal/injection, and examining these issues remains a major focus of ongoing research.”

Yet the report adds that “the majority, but not all, of the recent earthquakes appear to be the result of natural stresses, since they are consistent with the regional Oklahoma natural stress field.”

 

 
 


Show commenting policy

Most-Read Nation

  1. Superstorm Sandy-hit areas in New York, New Jersey remain vulnerable
  2. Hungry Yosemite National Park bears tracked by GPS
  3. Congress rankings detail its ‘poorest’ federal lawmakers
  4. WWII pilot takes off in B-29 yet again
  5. Teacher tried to stop school shooting
  6. 3 Supreme Court justices offer Yale students an insider’s look at personalities
  7. Anti-abortion group tries to sway votes of women in Democratic households
  8. Officers swarm California counties as deputies killed in shooting rampage
  9. Chicago train riders to undergo random baggage screening
  10. Hawaiians on notice over lava flow
  11. Philadelphia Mafia figure returned to prison for meeting friend
Subscribe today! Click here for our subscription offers.