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SMU Earthquake Researchers Find Fault From Irving to West Dallas

They know where. Now they're looking at why.
By Jason Heid |
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SMU's revised map of the recent earthquake epicenters.
SMU’s revised map of the recent earthquake epicenters.

This morning seismologists at SMU have released an interim report on their findings from installing 20 portable earthquake monitors around the sites of the Dallas area’s recent slew of tremors, which United States Geological Survey data previously indicated were centered around the former site of Texas Stadium.

But it appears we can’t blame Jerry Jones’ secret underground lair after all. The more precise data collected by the SMU team shows that the quakes have actually been concentrated along a two-mile line that indicates a fault from Irving to West Dallas:

“This is a first step, but an important one, in investigating the cause of the earthquakes,” said SMU seismologist Brian Stump.  “Now that we know the fault’s location and depth, we can begin studying how this fault moves – both the amount and direction of motion.”

“Then we can move on to what might have triggered it – examining factors both natural and manmade,” said SMU seismologist Heather DeShon. “Sometimes what triggers an earthquake can be very small, so all of these factors have to be considered when looking for that trigger.”

The quakes have originated about 4.5 to 7 kilometers underground, according to the report. Those depths are relatively near the surface by earthquake standards, which helps explain why these minor events (Richter-scale wise) have been felt as far away as Plano.

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