Agency reports magnitude 3.1 quake and 2 that were 2.7; the variety of magnitude 3.0 or higher earthquakes has actually risen
Three little earthquakes have actually been tape-recorded in northern Oklahoma throughout the weekend.
The United States Geological Survey reports the greatest was a magnitude-3.1 quake tape-recorded at 7.22 am Sunday 6 miles east of Medford.
No injuries or damage are reported.
The firm likewise tape-recorded a magnitude-2.7 quake 6 miles south-east of Waukomis at 8.13 am Sunday and a magnitude-2.7 temblor 12 miles north-east of Helena at 10.22 pm Saturday.
On Friday, the USGS reported an 4.0 earthquake at 12.27 am, 12 miles north-east of Helena. There were no reports of injury or damage, however the earthquake was felt throughout main Oklahoma and as far as Junction City, Kansas.
The variety of magnitude-3.0 or higher earthquakes has actually skyrocketed in Oklahoma, from a couple of lots in 2012 to more than 900 in 2014. Researchers have actually connected the boost to the underground disposal of wastewater from oil and gas production and state regulators have actually asked manufacturers to minimize wastewater disposal volumes.
The Oklahoma Geological Survey has actually started a six-month research study of oil and gas injection wells to examine the relationship in between fracking and earthquakes.