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Nearly a month after a magnitude-5.4 earthquake rocked parts of the Lone Star State, residents were again caught off guard Friday evening by another magnitude-5.5 quake centered near the town of Midland.

The United States Geological Survey reported the quake took place about 3 miles under the rural Texas terrain, but the shaking was reported over a wide area that stretched from New Mexico through the heart of Texas.

Seismologists said small earthquakes are not uncommon in Texas, but larger events are rare. Many of the quakes are linked to oil fracking and the reinjection of fluids underground.

“The area is known for oil and gas production, so that will research. We’re sure people are going to be looking at the number of wastewater injection sites in the region,” a USGS seismologist said.

November’s 5.4-magnitude, which occurred about 100 miles away from the epicenter of Friday’s quake, caused the state’s oil and gas regulators to propose tougher temporary restrictions on oil and gas production to help limit seismic activity.

Texas earthquake
The earthquake was felt from New Mexico to deep in the heart of Texas.
Fox Weather

Seismologists said it was still too early to determine whether the most recent quake is linked to wastewater injection. Still, researchers will be working around the clock to determine the cause.

There were no initial reports of significant damage around the quake’s epicenter or in other regions of Texas.

If the magnitude is not adjusted downward, the quake will rank as one of the strongest to impact the region.

According to USGS records, a magnitude-6.0 earthquake that shook the town of Valentine in 1931 holds the record for being the largest to impact the state.

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