The first time the earth shook their home, David and Meredith Hull thought it was a propane tank exploding outside, an odd but rare phenomenon.
Then it happened again. And again and again — more than 30 earthquakes since early November. One tremor tossed David Hull against the refrigerator and Meredith atop the stove.
"It felt like something was under the house literally lifting it up and slamming it back down on its foundation," said David Hull, 60, a retired sheriff's deputy. "The whole house was shaking."
The Hulls are one of dozens of families here and in nearby Azle, about 17 miles northwest of Fort Worth, who say they've been hit with a rash of earthquakes since November. Residents and city leaders point to area oil and gas disposal wells as likely culprits.
The wells dispose of wastewater used in hydraulic fracturing — or fracking — for natural gas in the nearby Barnett Shale.