Indiana University Bloomington

Gary L. Pavlis

Gary L. Pavlis

Professor of Geological Sciences

Geophysics, Seismology, and Tectonics

Director of Graduate Studies

Office:   GY409
Phone:   812-855-5141
Email:  pavlis@indiana.edu
Email Graduate Advisor: geodgs@indiana.edu

Educational Background

  • Ph.D., 1982, Geophysics, University of Washington
  • B.S., 1975, Engineering Physics, South Dakota State University

Research Interests

My area of specialization is seismology, which is a branch of geophysics. My research can be described as a mix of experimental, theoretical, and computational work directed at addressing earth science problems. I have extensive experience with deployments of modern passive seismic array instruments, having been involved in a continuous series of field projects running from the late 1980s to the present.

The current example is the OIINK project. I am, however, still actively involved in the St Elias Erosion and Tectonics Project (STEEP). This large, collaborative group is currently involved in consolidation of diverse results from that project. I plan to continue work in that area as the USArray is planned to be deployed in Alaska in the next 5 years.

My computational work has been largely devoted to data processing challenges posed by modern passive seismic arrays.

My recent work has largely focused on seismic imaging. My students and I have developed a unique technology in a direct imaging method we call plane wave migration (see publications below). This method produces results similar to a 3D seismic reflection volume but using teleseismic earthquakes as sources. We are currently using this method to probe the entire upper mantle of the US using the Earthscope Transportable Array and to look at shallower structure in order to understand the origins of the Illinois Basin using data from the OIINK experiment.

Software Development

I have an extensive software library.  Follow this link for documention for my software library and some user manuals.

Representative Publications

Complete list (PDF)

Liu, X., and Pavlis, G. L. (2013). Appraising the reliability of converted wavefield imaging; application to USArray imaging of the 410–km discontinuity. Geophysical Journal International 192/(3), p. 1240–1254. doi

Pavlis, G. L., K. Sigloch, S. Burdick, M. Fouch, F. L. Vernon (2012). Unraveling the geometry of the Farallon Plate: Synthesis of three–dimensional imaging results from USArray. Tectonophysics *532–535*, p. 82–12. doi

*Pavlis, G. L. (2011) Three–dimensional wavefield imaging of broadband seismic array data. Computers and Geosciences 37, p. 1054–1066. doi

*Pavlis, G. L. (2011) Three–dimensional wavefield imaging of data from the USArray: New constraints on the geometry of the Farallon slab/ Geosphere 7, p. 785–801.

*Hamburger, M. W., K. Shoemaker, S. Horton, H. DeShon, M. Withers, G. L. Pavlis, E. Sherrill (2011). Aftershocks of the 2008 Mt. Carmel, Illinois, earthquake; evidence for conjugate faulting near the termination of the Wabash Valley fault system. Seism. Res. Lett. 82(85), p. 735–747.

*Morozov, I. and G. L. Pavlis (2011). Management of large seismic datasets: I. Automated building and updating using BREQ_FAST and NetDC. Seism. Res. Lett. 82(2), p. 211–221.

*Morozov, I. and G. L. Pavlis (2011). Management of large seismic datasets: II. Data center type operations. Seism. Res. Lett. 82(2), p. 222–226.

*Anchieta, M. C., C. J. Wolfe, G. L. Pavlis, F. L. Vernon, J. Eakins, S. C. Solomon, G. Laske, J. A. Collins (2011). Seismicity around the Hawaiian Islands recorded by the plume seismometer networks; insights into faulting near Maui, Molokai, and Oahu. Bull. Seism. Soc. Amer. 101(4), p. 1742–1758.

*Pavlis, G. L. and F. L. Vernon (2010). Array processing of teleseismic body waves with the USArray. Computers and Geosciences 36(7), p. 910–920.

*Burdick, S., R. D. van der Hilst, F. L. Vernon, V. Martynov, T. Cox, J. Eakins, G. Karasu, J. Tytell, L. Astiz, and G. L. Pavlis (2010), Model update January 2010; upper mantle heterogeneity beneath North America from P-wave travel time tomography with global and USArray transportable array data. Seism. Res. Lett. 81(5), p. 689–693. doi

*Burdick, S., C. Li, V. Martynov, T. Cox, J. Eakins, T. Mulder, L. Astiz, F. L. Vernon, G. L. Pavlis, R. D. vanderHilst (2009), Model update December 2008; upper mantle heterogeneity beneath North America from P°wave travel time tomography with global and USArray transportable array data. Seism. Res. Lett. 80(4), p. 638–645. doi

*Growdon, M. A., G. L. Pavlis, F. Niu, F. Vernon, H. Rendon (2009). Constraints on mantle flow at the Caribbean–South American plate boundary inferred from shear–wave splitting. J. Geophys. Res. 114 (B2). doi

*Burdick, S., C. Li, V. Martynov, T. Cox, J. Eakins, T. Mulder, L. Astiz, F. L. Vernon, G. L. Pavlis, R. D. van der Hilst (2008). Upper mantle heterogeneity beneath North America from travel time tomography with global and USArray Transportable Array data. Seis. Res. Lett. 79, p. 384–392.

* Niu, F. T. Bravo, G. Pavlis, F. Vernon, H. Rendon, M. Bezada, A. Levander (2007). Receiver function study of the crustal structure of the southeastern Caribbean plate boundary and Venezuela. J. Geophys. Res. 112, B11308. doi

*Levander, A., M. Schmitz, H.G. AveLallemant, C. A. Zelt, D. S. Sawyer, M. B. Magnani, P. Mann, G. Christenson, J. E. Wright, G. L. Pavlis, J. Pindell (2006). Evolution of the southern Caribbean plate boundary. EOS Trans. Amer. Geophys. Union 87, p. 97–101.

*Fan, C., G. L. Pavlis, A. B. Weglein, and B. G. Nita (2006). Removing free surface multiples from teleseismic transmission data and reconstructing the reflection response using reciprocity and the inverse scattering series. Geophysics 71, p. S171–S178.

*Weglein, A. B., B. G. Nita, K. Innanen, E. Otnes, S. A. Shaw, F. Liu, H. Zhang, A. C. Ramirez, J., G. L. Pavlis, and C. Fan (2006), Using the inverse scattering series to predict the wave field at depth and the transmitted wavefield without an assumption about the phase of the measured reflection data or back–propagation in the overburden. Geophysics 71, p. SI125–SI137.

*Eagar, K. C., G. L. Pavlis, and M. W. Hamburger (2006). Evidence of possible induced seismicity in the Wabash Valley Seismic Zone from improved microearthquake locations. Bull. Seism. Soc. Amer 96, p. 1718–1728. doi

*Fan, C., G. L. Pavlis, and K. Tuncay (2005). GCLGRID: A three–dimensional geographical curvilinear grid library for computational seismology. Computers in Geosciences 32, p. 371–381.

*Pavlis, G. L. (2005). Direct imaging of the coda of teleseismic P waves, in Seismic Earth: Array Analysis of Broadband Seismograms. AGU. Mono. 157, p. 171–185.

*Pavlis, G. L., F. L. Vernon, D. Harvey, and D. Quinlan (2004). The generalized earthquake location (GENLOC) package: A modern earthquake location library. Computers in Geosciences 30, p. 1079–1091.

Pavlis, G. L., M. W. Hamburger, and J. Wu (2004). Structure and seismicity of the Wabash Valley Seismic Zone. USGS NEHRP Report. website

Baldwin, T. K., G. L. Pavlis, F. L. Vernon, H. Rendon, L. Alvarado, R. Vasquez (2004). Proyecto Caribe: Preliminary results from an ongoing broadband, passive seismic array experiment in Venezuela. Proc. XII Congreso Venezolano de Geofisica, Caracas, Venezuela (published on CDROM).

*Poppeliers, C. and G. L. Pavlis (2003). Three–dimensional plane wave migration of P–to–S converted phases: Part 2, stacking multiple events. J. Geophys. Res. 108, p. 2267. doi

*Pavlis, G. L. (2003). Imaging the earth with passive seismic arrays. Leading Edge 22, p. 224–231.

*Poppeliers, C. and G. L. Pavlis (2003). Three–dimensional plane wave migration of teleseismic P–to–S converted phases: Part 1, theory. J. Geophys. Res. 108 p. 2112. doi

*Poppeliers, C. and G. L. Pavlis (2002). The seismic response of a steep slope: an analysis from a dense, three–component seismic array. Bull. Seism. Soc. Amer. 92, p. 3102–3115.

*Pavlis, G. L., A. J. Rudman, B. M. Pope, M. W. Hamburger, G. W. Bear, H. Al-Shukri (2002). Seismicity of the Wabash Valley Seismic Zone based on a temporary array experiment. Seism. Res. Lett. 73, p. 751–761.

Rodi, W. R., R. Engdahl, E. Bergman, F. Waldhauser, G. Pavlis, H. Israelsson, J. Dewey, and M. Toksoz (2002). A new grid–search multiple event location algorithm and a comparison of methods, Proc. 24rd Seismic Research Review: Nuclear Explosion Monitoring: Innovation and Integration, National Nuclear Security Administration report LA–UR–02-5048, p.403–411.

Vernon, F., G. Pavlis, and T. Wallace (2002). Collaborative Research: Seismic Catalogue Completeness and Accuracy, Proc. 24rd Seismic Research Review: Nuclear Explosion Monitoring: Innovation and Integration. National Nuclear Security Administration report LA–UR–02–5048, p. 448–456.

* Published in Referred Journal

Service

My service activities are varied. Click here if you are interested in this element of my work.