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No longer at LDEO: 
Lamont Research Professor
Lamont-Doherty Earth Observatory
Seismology Geology and Tectonophysics
Earth and Environmental Sciences
Lamont-Doherty Earth Observatory
108G Seismology
61 Route 9W - PO Box 1000
(845) 365-8450
(845) 365-8150


Fields of interest: 
Earthquake Seismology, Geodynamics

My research program focuses on using seismological observations to better understand the crust and mantle dynamics underlying surface deformation, including faulting, magmatism, and the formation and evolution of lithospheric plates.  The tectonic processes that shape the habitable surface environment impact humanity in a number of ways, including by producing major natural hazards such as earthquakes, volcanic eruptions, and landslides, influencing climate and weather over a variety of length and time scales, and establishing the framework for the deposition and storage of major earth resources. In my research, I utilize seismic images of the Earths deep interior to gain a better understanding of the processes that underlie faulting, magmatism, and tectonic deformation. This effort often requires collecting new seismic data in field locations spanning the globe, including from ocean-bottom instruments deployed on the seafloor.

List of degrees from highest to lowest:
Ph.D. Geophysics
Massachusetts Institute of Technology
M.S. Geology
University of Michigan
B.S. Geophysics
Brown University
Honors & Awards: 
Sigma Xi Young Faculty Award, Georgia Institute of Technology 2002

Lamont Projects:

Research Blogs:

Referenced in the Following News Items:

Featured in the Following Videos:

Selected Publications:

Imaging continental breakup using teleseismic body waves: The Woodlark Rift, Papua New Guinea Eilon, Z.; Abers, G. A.; Gaherty, J. B.; Jin, G. Geochemistry, Geophysics, Geosystems (2015) 10.1002/2015GC005835
Anisotropy beneath a highly extended continental rift Eilon, Z.; Abers, G. A.; Jin, G.; Gaherty, J. B. Geochemistry, Geophysics, Geosystems (G-cubed) 03/2014 Volume: 15 Issue: 3 p.: 545-564 (2014) 10.1002/2013GC005092
Body-wave tomography of western Canada Mercier, J-P; Bostock, MG; Cassidy, JF; Dueker, K; Gaherty, JB; Garnero, EJ; Revenaugh, J; Zandt, G Tectonophysics Volume: 475 p.: 101016/jtecto200905030 (2009) (2010)
The teleseismic signature of fossil subduction: Northwestern Canada Mercier, J. P.; Bostock, M. G.; Audet, P.; Gaherty, J. B.; Garnero, E. J.; Revenaugh, J. Journal of Geophysical Research-Solid Earth Apr 29 Volume: 113 Issue: B4 p.: - (2008) Doi 10.1029/2007jb005127
Seismic velocity structure and depth-dependence of anisotropy in the Red Sea and Arabian shield from surface wave analysis Hansen, S. E.; Gaherty, J. B.; Schwartz, S. Y.; Rodgers, A. J.; Al-Amri, A. M. S. Journal of Geophysical Research-Solid Earth Oct 14 Volume: 113 Issue: B10 p.: - (2008) Doi 10.1029/2007jb005335
Evaluating hot spot-ridge interaction in the Atlantic from regional-scale seismic observations Gaherty, J. B.; Dunn, R. A. Geochemistry Geophysics Geosystems May 11 Volume: 8 p.: - (2007) Doi 10.1029/2006gc001533
Surface wave tomography of the upper mantle beneath the Reykjanes Ridge with implications for ridge-hot spot interaction Delorey, A. A.; Dunn, R. A.; Gaherty, J. B. Journal of Geophysical Research-Solid Earth Aug 24 Volume: 112 Issue: B8 p.: - (2007) Doi 10.1029/2006jb004785