The small town of Cleburne, in North Texas, has been experiencing something unprecedented in its 142-year history - earthquakes.

"It's a little unnerving," said Cleburne Mayor Ted Reynolds. "We've had five in recent days."

The earthquakes have been between 2.0 and 3.0 magnitude - just enough to be felt, but not enough to damage property, Reynolds said.

"Some people haven't felt them at all. No damage, no injuries," he said. "Most people are curious rather than scared."