Skip to Content - Skip to Navigation

Jon Lewis



  • BS, University of Vermont—Geology
  • MS, University of Tennessee—Geology
  • PhD, University of Connecticut—Geology
  • Postdoctoral Fellow, University of California at Davis—Neotectonics

Courses Taught:

GEOS 101/102 Dynamic Earth
GEOS 310 Environmental Geology
GEOS 302 Structural Geology
GEOS 303 Field Geology
GEOS 362 Plate Tectonics
GEOS 470 Research Methods in the Geosciences

Professional Interests:

Structural geology, earthquake geology, plate boundary deformation, neotectonics

Professional Development:

Featured in Article on Dual Career Couples, Preparing for an Academic Career

Current Projects:

  • Costa Rica—contemporary crustal deformation constrained by tectonic geomorphology, geochronology and earthquake modeling
  • SW Japan—controls on Great Earthquakes: Integrated Ocean Drilling Program (IODP), Nankai Trough Seismogenic Zone Experiment (NantroSEIZE) ( IUP Magazine Article)
  • Taiwan—the neotectonics of arc-continent collision constrained by modeling outcrop-scale faults and earthquakes
  • Western U.S. - relation between active faulting and volcanism

Selected Publication: (Full CV in PDF format)

(*indicates students) 


  • Lin, W., T. B. Byrne, M. Kinoshita, L. C. McNeill, C. Chang, J. C. Lewis, Y. Yamamoto, D. M. Saffer, J. Casey Moore, H.-Y. Wu, T. Tsuji, Y. Yamada, M. Conin, S. Saito, T. Ito, H. J. Tobin, G. Kimura, K. Kanagawa, J. Ashi, M. B. Underwood, and T. Kanamatsu, (in press), Distribution of stress state in the Nankai  subduction zone, southwest Japan and a comparison with Japan Trench: Tectonophysics.


  • Lewis, J. C., D. J. O'Hara*, and R.-J. Rau, Seismogenic strain across the transition from fore-arc slivering to collision in southern Taiwan, Journal of Geophysical Research: Solid Earth, 120(6), 2015JB011906, doi:10.1002/2015JB011906.


  • Lewis, J. C., T. B. Byrne and K. Kanagawa, Evidence for mechanical decoupling of the upper plate at the Nankai subduction zone: Constraints from core-scale faults a NantroSEIZE Sites C0001 and C0002, Geochem. Geophys. Geosyst., v. 14 (3), doi:10.1029/2012GC00440
  • Montero, Walter P., J. C. Lewis, J. S. Marshall, S. Kruse and P. Wetmore, Neotectonic faulting and forearc sliver motion along the Atirro-Rio Sucio fault system, Costa Rica, Central America, Geological Society of America Bulletin, v 125 (5/6), p. 857-876, doi:10.113-/B30471.
  • Mirakian, D. C., J. M. Crespi, T. B. Byrne, C. Huang, W. B. Ouimet and J. C. Lewis, Tectonic implications of nonparallel topographic and structural curvature in the higher elevations of an active collision zone, Taiwan, Lithosphere v. 5, no. 1, p 49-66, doi:10.1130/L232.1


  • Byrne, T. B., W. Lin, A. Tsutsumi, Y. Yamamoto, J. C. Lewis, K. Kanagawa, Y. Kitamura, A. Yamaguchi and G. Kimura, Anelastic strain recovery reveal extension across SW Japan subduction zone, Geophysical Research Letters v. 36, L23310, doi:10.1029/2009GL040749.


  • Lewis, J. C., A. C. Boozer*, A. Lopez and W. Montero, Collision versus sliver motion at the Middle America subduction zone: constraints from background seismicity in central Costa Rica, Geochemistry Geophysics Geosystems, v. 9 (7), Q07S06 doi:10.1029/2007GC001711.


  • Lewis, J. C., Fine-scale partitioning of contemporary strain in the southern Walker Lane: Implications for accommodating divergent strike-slip motion, Journal of Structural Geology, v. 29, p. 1201-1215, doi:10.1016/j.jsg.2007.02.015
  • Lewis, J. C., R. J. Twiss, C. J. Pluhar and F. C. Monastero, Multiple constraints on divergent strike-slip deformation along the eastern margin of the Sierran microplate, SE California, in: Exhumation Associated with Continental Strike-Slip Systems , eds: Till, A. B., S. M. Roeske, J. C. Sample, and D. A. Foster, Geological Society of America Special Paper 434.


  • Pluhar, C. J., R. S. Coe, J. C. Lewis, F. C. Monastero and J. M. G. Glen, Fault block kinematics at a releasing stepover of the Eastern California shear zone: Partitioningof rotation style in and around the Coso geothermal area and nascent metamorphiccore complex, Earth and Planetary Science Letters, v. 250, p. 134-163,doi:10.1016/j.epsl.2006.07.034. 
  • Geoscience Department
  • Walsh Hall, Room 111
    302 East Walk
    Indiana, PA 15705
  • Phone: 724-357-2379
  • Fax: 724-357-6208
  • Office Hours
  • 7:30 a.m.–12:00 p.m.
  • 1:00 p.m.–4:00 p.m.