Robert C. Viesca

Assistant Professor
Geosystems Engineering
Dept. of Civil and Environmental Engineering
Tufts University
207A Anderson Hall
200 College Avenue
Medford, MA 02155

tel: +1 617 627 5165
fax: +1 617 627 3994

Research interests

My interests and research are in problems of theoretical mechanics in earth sciences and engineering involving the fields of seismology, tectonophysics, civil and environmental engineering, ocean sciences, and hydrology. Work on earthquake mechanics has focused on the stressing and strength of faults as relevant to the nucleation of earthquake-generating or aseismic rupture, its propagation, and the deformation of the adjacent environment. Studies of earth surface processes include subaerial and submarine landsliding and the hydrologic processes that may lead to such failure or that may otherwise shape the land or seafloor environments.


John D. Platt, Dmitry I. Garagash, Nicolas Brantut, Elizabeth L. Templeton-Barrett, James R. Rice

Current members of the research group

Sohom Ray; B.S., Physics, University of Delhi; M. Tech., Applied Geophysics, IIT Roorkee; research interests include sliding friction, nonlinear instabilities, and relevance of both for earthquake nucleation.

Prospective members

Graduates interested in joining the group to pursue a Ph.D. or M.S. are encouraged to send an email and apply to join the department's Geosystems graduate program. See here for information on the application process.

Support for Tufts undergraduates is available through the Tufts Summer Scholars program. Support for department undergraduates is available from the Cataldo Fellowship (competitive process announced Spring term).

Recent and upcoming group presentations

AGU Fall Meeting 2015, 16-20 Dec. '15: R. C. Viesca, "Elastic stress transfer as a diffusive process due to aseismic fault slip in response to fluid injection," Abstract MR41E-02

AGU Fall Meeting 2015, 16-20 Dec. '15: Sohom, R., and R. C. Viesca, "Preferential earthquake-nucleating locations on faults determined by heterogeneous direct- and evolution-effect parameters of rate- and state-dependent friction," Abstract MR33C-2685

Sigma Xi, Georgia Tech, Monie Ferst Award Symposium for James R. Rice, 5 Dec. '15: R. C. Viesca, "Skipping between slipping and dripping"

Condensed Matter Seminar Series, Tufts University, 18 Nov. '15: R. C. Viesca, "Sliding friction and frictional instabilities"

Modelling Fault Friction Workshop, Experimental rock deformation/HPT Lab, Utrecht University, 16-17 Sept. '15: R. C. Viesca, "How may frictional parameters determine earthquake nucleation behavior on faults with rate and state friction"


Platt, J. D., R. C. Viesca, and D. I. Garagash, Steadily propagating slip pulses driven by thermal decomposition, Journal of Geophysical Research, 120, B12200, 2015. doi:10.1002/2015JB012200 (pdf)

Viesca, R. C., and D. I. Garagash, Ubiquitous weakening of faults due to thermal pressurization, Nature Geoscience, advanced online publication on 5 Oct. 2015. doi:10.1038/ngeo2554 (article, pdf)

Brantut, N., and R. C. Viesca, Earthquake nucleation in intact or healed rocks, Journal of Geophysical Research, 119, B11518, 2015. doi:10.1002/2014JB011518 (pdf)

Viesca, R. C., and J. R. Rice, Nucleation of slip-weakening rupture instability in landslides by localized increase of pore pressure, Journal of Geophysical Research, 117, B03104, 2012. doi:10.1029/2011JB008866 (pdf)

Viesca, R. C., The near and far of pore pressure during landslide and earthquake ruptures, Ph.D. thesis, Harvard University, August 2011. (pdf)

Viesca, R. C., and J. R. Rice, Elastic reciprocity and symmetry constraints on the stress field due to a surface-parallel distribution of dislocations, Journal of the Mechanics and Physics of Solids, 59, 2011, pp. 753–757. doi:10.1016/j.jmps.2011.01.011 (pdf)

Viesca, R. C., and J. R. Rice, Modeling slope instability as shear rupture propagation in a saturated porous medium, in Submarine Mass Movements and Their Consequences, 4th International Symposium, Austin, TX, 8–11 Nov. 2009., (eds. D.C. Mosher, R.C. Shipp, L. Moscardelli, J.D. Chaytor, C.D.P. Baxter, H. J. Lee, R. Urgeles), Springer, 2010, pp. 215–225. doi:10.1007/978-90-481-3071-9_18 (pdf) (presentation broadcast)

Viesca, R. C., E. L. Templeton, and J. R. Rice, Off-Fault Plasticity and Earthquake Rupture Dynamics, 2. Effects of Fluid Saturation, Journal of Geophysical Research, 113, B09307, 2008. doi:10.1029/2007JB005530 (pdf) (part 1: Templeton & Rice pdf)

Professional Appointments and Education

2012 - present, Assistant Professor, Department of Civil and Environmental Engineering, Tufts University
2011 - 2012, Postdoctoral Fellow, Department of Civil and Resource Engineering, Dalhousie University (with Dmitry I. Garagash)
2011, Ph. D., 2006, S. M., Engineering Sciences, Harvard University (with James R. Rice)
2005, B.S., Civil Engineering, Tufts University
(see also curriculum vitae)

(Last update: 7 Oct. 2015)