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Judi Lynn

(164,067 posts)
Thu Apr 7, 2016, 08:32 PM Apr 2016

Several earthquakes recorded in Oklahoma on Thursday

Source: Associated Press

Several earthquakes recorded in Oklahoma on Thursday

Updated 7:36 pm, Thursday, April 7, 2016

LUTHER, Okla. (AP) — The U.S. Geological Survey has recorded several small to moderate earthquakes in Oklahoma, including a magnitude 4.0 quake.

The temblor was recorded at 5:27 p.m. Thursday, 1 mile north of Luther — or 25 miles northeast of Oklahoma City.

. . .

The quake is one of seven recorded since shortly after midnight. The others range in magnitude from 2.7 to 3.6.

The number of magnitude 3.0 or greater earthquakes has skyrocketed in Oklahoma, from a few dozen in 2012 to more than 900 last year and scientists have linked the increase to the underground disposal of wastewater from oil-and-gas production. State regulators are asking oil and gas companies to reduce their wastewater disposal operations.

Read more: http://www.chron.com/news/us/article/Several-earthquakes-recorded-in-Oklahoma-on-7235431.php

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dchill

(42,660 posts)
8. Not far enough.
Thu Apr 7, 2016, 10:15 PM
Apr 2016
https://en.m.wikipedia.org/wiki/New_Madrid_Seismic_Zone#Potential_for_future_earthquakes

Potential for future earthquakes

In a report filed in November 2008, the U.S. Federal Emergency Management Agency warned that a serious earthquake in the New Madrid Seismic Zone could result in "the highest economic losses due to a natural disaster in the United States," further predicting "widespread and catastrophic" damage across Alabama, Arkansas, Illinois, Indiana, Kansas, Kentucky, Mississippi, Missouri, Oklahoma, Texas, and particularly Tennessee, where a 7.7 magnitude quake or greater would cause damage to tens of thousands of structures affecting water distribution, transportation systems, and other vital infrastructure.[20] The earthquake is expected to also result in many thousands of fatalities, with more than 4,000 of the fatalities expected in Memphis alone.
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