Investigating seismicity in the Delaware Basin
The region around Pecos, TX in the Delaware Basin is one of the most seismically active areas of Texas, with ~56 events with M2.0+ reported by the Texas Seismic Network (TexNet) in the first 11 months of 2018 alone. Much of this seismicity appears to be located at less than 6-km depth, but the earthquake depths remain poorly-constrained due to the relatively low number of seismic stations in the Pecos area. In order to improve earthquake locations, especially depths, and in order to develop improved structural, fault, stress, and velocity models of the region, the University of Texas at El Paso (UTEP) has partnered with the Texas Seismological Network (TexNET) to design and install a flexible, regional nodal network around Pecos, TX.
We have been recording continuously on ~24 3-component Fairfield Geotechnologies 5-Hz seismic nodes in the Pecos area since November 2018.
The Delaware Basin is located near the complex transition from the Rio Grande Rift to the Great Plains, and we hope this collaboration will result in an improved understanding of the contemporary stress field and faulting in this complex area that will be useful to people living in the Delaware Basin as well as stakeholders in government, academia, and industry.
Collaborating scientists in the U.S. include the research group led by Dr. Diane Doser at Texas at El Paso and the Texas Seismological Network (TexNet), especially Dr. Alexandros Savvaidis.
Publications & Presentations
Faith, J., Karplus, M.S., Veitch, S.A., Doser, D., Savvaidis, A., Investigating seismicity and structure with a 25-node 3-component, 5-Hz geophone network in the Delaware Basin around Pecos, TX, Seismological Society of America Meeting, Seattle, WA (April 2019).
Karplus, M., Veitch, S., Faith, J.*, Doser, D., Chaput, J., TexNet/ CISR Annual Meeting, "Investigating Seismicity and Structure of the Delaware Basin with a 25-Node 3-Component 5-Hz Geophone Network," Texas Seismological Network/ Bureau of Economic Geology, Austin, TX. (December 5, 2018).
Karplus, M., Veitch, S., Faith, J.*, Doser, D., Stanford Consortium for Induced Seismicity Meeting, "UTEP Nodal Seismic Network near Pecos, Texas," Stanford University, Midland, Texas. (November 29, 2018).