The Enid News and Eagle, Enid, OK

Local and State News

July 31, 2013

Quake swarm: 6 Medford temblors draw curiosity of OGS

MEDFORD, Okla. — An earthquake north of Medford Wednesday morning has drawn the curiosity of seismologists with Oklahoma Geological Survey.

Amie Gibson, research scientist with OGS, said staff members are bringing a seismometer, a digitizer and a cell modem to the region this morning to monitor further activity.

“We’re going to haul equipment up there tomorrow,” Gibson said Wednesday afternoon.

Six earthquakes have occurred in the Medford area over recent days, but Wednesday’s earthquake, registering 2.9 on the Woods-Anderson magnitude scale was the largest one, Gibson said.

“We’ve got several of them right on the Kansas line,” Gibson said.

OGS’s website pinpoints the epicenter of the quake as 2.67 miles north of Medford. That is just south of Johnston Road and west of M&M Blacktop Road.

People in the Medford area reported hearing a “boom” and feeling the shake Wednesday morning.

“We felt it at city hall, which is on the north side of town,” said an employee of the city clerk’s office. “We did get several calls from people on the south side of town. Up here at city hall, it sounded like a sonic boom.”

A woman who lives on the southwest side of Medford has called city hall a handful of times over the last couple weeks to report feeling her house move as if someone had slammed a door, she said.

Grant County Sheriff Scott Sterling said his office got calls about Wednesday’s earthquake as well.

“Most people described it as the sound of a vehicle driving into the side of the building they were in,” Sterling said. “I’ve heard no accounts of any structural damage being reported at this point, and we’ve noticed no damage.”

Sterling said area residents seem to recognize earthquakes for what they are instead of becoming alarmed.

“There’s been a few in the last couple years,” Sterling said. “I think people realize now what that was.”

Gibson said as of Wednesday afternoon, only two people had sent observations to OGS. One observer, who lives 2.5 miles south of Medford on U.S. 81, reported hearing a boom and feeling the building shake.

“If they want to report what they observed, they can use the link on the website,” Gibson said.

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