Volume 13 , Issue 45

Foreshocks & Aftershocks Rattle Oklahomans

Were you one of those Oklahomans that got rattled with foreshocks and aftershocks from this weekend's 4.7 and 5.6 magnitude earthquake with the epicenter around Sparks, Oklahoma?

Geologists believe a magnitude 4.7 earthquake started it all early Saturday morning around 2:13am. That was only a foreshock of a bigger aftershock 5.6 that followed later in the evening that was felt all the way towards Alva and Cherokee in northwest Oklahoma around 10:53pm.

By mid-moring Sunday and at least 10 aftershocks were recorded and they were expecting more. Since the systems east of the Rocky Mountains have not been studied as much as those in the West, pinpointing a fault line may be difficult is what researchers are telling us.

There was a report that the magnitude 5.6 earthquake rocked the stands at the Oklahoma State University (OSU) game at 10:53pm Saturday night. Were you there when the OSU Pokes rumbled with Kansas State for a 52-45 Win? Did you feel the quake shortly after the game? They say it was felt throughout the state and in Kansas, Missouri, Arkansas, northern Texas and some parts of Illinois and Wisconsin.

Afterwards, Sunday, 14 tremors measuring from 2.7 to 4.0 were listed on the U.S. Geological Survey with the most recent was a 3.3 magnitude earthquake located 10 miles northeast of Shawnee at 12:26pm, 37 miles east of Oklahoma City.

First reports had Saturday night's quake listed as 5.2 magnitude. It struck Oklahoma at 10:53 p.m. The epicenter was located four miles east of Sparks, eight miles south of Davenport, nine miles north northwest of Prague, and 45 miles east of Oklahoma City. The earthquake was only three miles deep.

The Oklahoma Geological Survey report that the earthquakes have occurred on the Wilzetta fault, also known as the Seminole uplift. They are now referring to Saturday morning's 4.7 magnitude earthquake as a foreshock.

For a list of earthquakes mapped and centered at 36°N, 97°W, as updated November 7, 2011, CLICK HERE. Here is another website, Oklahoma Geological Survey to show recent earthquakes and to report feeling an Oklahoma earthquake.   |  View or Add Comments (0 Comments)   |   Receive updates ( subscribers)  |   Unsubscribe

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