Source characteristics of seismicity associated with underground wastewater disposal: A case study from the 2008 Dallas-Fort Worth earthquake sequence

摘要

In this article, we demonstrated the application of advanced seismic location and source characterization techniques to a subset of small earthquakes that have been observed near the DFW airport in the last several years. Our study supports the findings of FROH2011, which indicated that the events were located at shallow depths near the SWD well on the DFW property, with temporal behavior that correlated with injection activities at the site. Our detection algorithm found a significant number of additional small events that could be located near the DFW focus, using an energy criterion tuned to the data characteristics.