Residents in Del City and southeast Oklahoma City say they felt their houses shake Tuesday afternoon after three earthquakes hit the area. Officials with the Oklahoma Geological Survey say all three originated in Del City and happened within a three-hour period.

The first happened at 12:25 p.m. and registered with a magnitude of 2.7. The second hit at 12:41 p.m. and was a magnitude 2.5 earthquake. The third hit at 2:57 p.m. and was a magnitude 2.2.

Homeowners say their houses shook, and they heard a loud boom. Debbie Parker says she was checking her e-mail when she thought a car had slammed into her house.

"This whole thing just shook," Parker said as she shook her computer monitor. "It just freaked me out."

Del City police say there are no reports of damage. The Oklahoma Geological Survey says Oklahoma averages 50 earthquakes a year.