An SMU-led seismology team finds that high volumes of wastewater injection combined with saltwater (brine) extraction from natural gas wells is the most likely cause of earthquakes occurring near Azle, Texas, from late 2013 through spring 2014. The seismology team identified two intersecting faults, and developed a sophisticated 3D model to assess the changing fluid pressure within the rock formation.
Journalist Dylan Baddour covered the recent interim report about the research findings of Southern Methodist University's seismology team surrounding a recent series of earthquakes in the Irving, Texas area. His Houston Chronicle report, "New data shows North Texas fault line," covered the preliminary findings.
WFAA Channel 8 reporters Byron Harris and Marjorie Owens covered the recent interim report about the research findings of Southern Methodist University's seismology team surrounding a recent series of earthquakes in the Irving, Texas area. The Channel 8 report, "SMU study: Quakes shallow, concentrated at fault line," covered a briefing with the press on Friday, Feb. 6, 2015.
Science journalist Anna Kuchment covered a recent interim report on the research findings of SMU's seismology team surrounding a recent series of earthquakes in the Irving, Texas area. Kuchment's Dallas Morning News article, "Remap of Dallas-area quakes shows fault closer to fracking wells than thought," covered a briefing with the press on Friday, Feb. 6, to explain progress on the team's earthquake research.
SMU analysis of recent North Texas earthquake sequence reveals geologic fault, epicenters in Irving and West Dallas
Initial results from the seismology team at Southern Methodist University reveal that a recent series of earthquakes near old Texas Stadium in the Dallas-Fort Worth area were relatively shallow and concentrated along a narrow two-mile line that indicates a fault extending from Irving into West Dallas. SMU and the United States Geological Survey have shared an interim report with the mayors of Dallas and Irving.
Journalist Jehadu Abshiro of the SMU Daily Campus covered the research of SMU seismologist Heather R. DeShon. DeShon is leading the effort to trace the source of a recent sequence of small earthquakes in North Texas and any relationship they may have to the injection of waste water by energy companies using shale gas production to recover gas.
Earth magazine's Carolyn Gramling interviewed SMU geophysicist Brian Stump about the operation of a saltwater injection disposal well that was a "plausible cause" for a series of small earthquakes in the Dallas-Fort Worth area in 2008.
The May 13 article in Earth, the magazine of The American Geological Institute, explores the research into the earthquakes, which occurred in an area of North Texas where the vast Barnett Shale geological formation traps natural gas deposits in subsurface rock.
A study of seismic activity near Dallas/Fort Worth International Airport by researchers from SMU and UT-Austin reveals that the operation of a saltwater injection disposal well in the area was a "plausible cause" for the series of small earthquakes that occurred in the area between October 30, 2008, and May 16, 2009.
The incidents under study occurred in an area of North Texas where the vast Barnett Shale geological formation traps natural gas deposits in subsurface rock.
Production in the Barnett Shale relies on the injection of pressurized water into the ground to crack open the gas-bearing rock, a process known as "hydraulic fracturing." Some of the injected water is recovered with the produced gas in the form of waste fluids that require disposal.
Rare earthquake activity in the Dallas-Fort Worth area has prompted the National Science Foundation to loan SMU 10 seismic stations to study the phenomenon. News reports about the research have been filed by The Wall Street Journal, WFAA-TV Channel 8, the Dallas Morning News and others.