picture of
                HeatherHeather R. DeShon

Associate Professor

Roy M. Huffington Department
     of Earth Sciences

Southern Methodist University

Contact Information:
PO Box 750395
Dallas, TX 75275-0395
(214) 768-2916 (office)
(214) 768-2701 (fax)

Email: hdeshon at smu.edu





Education

       
B.S., Geophysics and Mathematics, Southern Methodist University, May 1999

        Ph.D., Earth Sciences (Geophysics), University of California Santa Cruz, June 2004
            Dissertation title: Seismogenic zone structure along the Middle America
                                         subduction zone, Costa Rica
(link)


Research Interests
  • Earthquake generation within subduction zones and intraplate settings
  • Induced seismicity
  • Seismogenic zone processes
  • Local earthquake tomography and waveform cross-correlation
  • Volcano seismology
        For further information follow link to research page (updated Feb. 2009)

Courses (link)
  • GEOL 1313 Earthquakes and Volcanoes
  • GEOL 3359 Computer Methods in Earth Sciences
  • GEOL 3380 Introduction to Geophysics
  • GEOL 5392 Introduction to Seismology
  • GEOL 6380 Geophysical Inverse Theory
  • Seminar in Seismology-The Seismogenic Zone of Subduction Thrust Fault


Current Research Projects

North Texas Earthquake Studies
      Project Website
  • Understanding North Texas Earthquakes, SMU University Research Council, Collaborators: M. Hornbach, B. Stump, C. Hayward, M.B. Magnani, Z. Lu
  • Imaging faults in Northern Texas and Oklahoma using earthquakes and active source data, USGS Cooperative Agreement, 2016.  PIs: H.R. DeShon and M.B. Magnani
  • TexNet: Earthquake source characterization in the Fort Worth Basin, collaborative with the Center for Integrated Seismicity Studies, Univ. of Texas. PI: H.R. DeShon, Collaborators: C. Frohlich, J. Walter, Alexandros Savvaidis
Subduction Studies
  • Teleseismic Double-Difference Tomography and Real-time Waveform Cross-Correlation

New Madrid Studies
  • Northern Embayment Lithosphere Experiment, NSF Earthscope, Collaborators: C. Langston, H.R. DeShon, C.A. Powell, S. Horton (UoM), C. Ammon (Penn State), and B. Hermann (SLU)  

Past Projects

  • Imaging 3D Seismic Velocity and Attenuation Heterogeneity Along the Seismogenic Zone of Costa Rica and Nicaragua, NSF MARGINS Program, PI: H.R. DeShon (UoM)
  • Imaging Body Wave Attenuation Heterogeneity within the New Madrid Seismic Zone using Local Earthquakes, USGS NEHRP, PI: H.R. DeShon (UoM)
  • Detection and Location of Non-Volcanic Tremor in the New Madrid Seismic Zone, USGS NEHRP, PIs: H.R. DeShon, C. Langston, S. Horton, M. Withers (UoM)
  • High-precision teleseismic relocation and tomography for the M 9 and M 8.7 Sumatra great earthquake sequences, NSF Geophysics,  Collaborators: H.R. DeShon (UoM), Cliff Thurber, Haijang Zhang, Jeremy Pesicek (Univ. Wisconsin), E.R. Engdahl (Univ. Colorado), M. Brudzinski (Univ. Miami Ohio), and F. Waldhauser (Lamont Observatory, Columbia Univ.)
  • Imaging 3D Seismic Velocity and Attenuation Heterogeneity Along the Seismogenic Zone of Costa Rica and Nicaragua and Costa Rica Seismogenic Zone Experiment (CRSEIZE), NSF Margins Program, PIs Schwartz (UCSC), Dixon (Miami), Dorman and Brown (Scripps)
  • Earthquake Location and 3D Velocity Determination of Alaskan Volcanoes using Waveform Cross-correlation and Double-difference Tomography, PIs Thurber (U. Wisconsin) and Prejean (AVO)

Selected Recent Publications

Cao, A.F., B. Stump, and H.R. DeShon (2018), High Resolution Seismic Data Regularization and Wave Field Separation, Geophysical Journal International, accepted Jan. 5 2018.

 

Ogwari, P., H.R. DeShon and M.J. Hornbach (2018), The Dallas-Fort Worth Airport Earthquake Sequence: Seismicity Beyond Injection Period, Journal of Geophysical Research, accepted Jan. 3 2018.

 

Magnani, M.B., M.L. Blanpied, H.R. DeShon and M.J. Hornbach (2017), Discriminating between natural versus induced seismicity from long-term deformation history of intraplate faults, Science Advances, 3, e1701593.


Scales, M.M., H.R. DeShon, M.B. Magnani, J.I. Walter, L. Quinones, T.L. Pratt and M.J. Hornbach (2017), A decade of induced slip on the causative fault of the 2015 Mw 4.0 Venus earthquakes, northeast Johnson County, Texas, Journal of Geophysical Research, doi: 10.1002/2017JB014460.


Hornbach, M.J., M. Jones, M. Scales, H.R. DeShon, M.B. Magnani, C. Frohlich, B. Stump, C. Hayward, and M. Layton (2016), Ellenburger wastewater injection and seismicity in North Texas, Physics of the Earth and Planetary Interiors, doi:10.1016/j.pepi.2016.06.012.


Frohlich, C., H.R. DeShon, B. Stump, C. Hayward, M.J. Hornbach, J.I. Walter (2016), A Historical Review of Induced Earthquakes in Texas, Seismological Research Letters, 87(4), doi:10.1785/0220160016.


Hornbach, M., H.R. DeShon, W.L. Ellsworth, B.W. Stump, C. Hayward, C. Frohlich, H.R. Oldham, J.E. Olson, M.B. Magnani, C. Brokaw, J.H. Luetgert (2015), Causal factors for seismicity near Azle, Texas, Nature Communications, 6, 6728, doi:10.1038/ncomms7728.


Link to a complete publications listing with PDFs

Curriculum Vitae (link)



Graduate student opportunities: I am recruiting MS or PhD student to start in Fall 2018.  Interested students are welcome to apply to the geophysics graduate program at SMU.  HRD-October 2017





Updated on January, 2018