James Gaherty

About

Dr. James B. Gaherty is a Professor of Geophysics in the School of Earth and Sustainability at Northern Arizona University, where he has been a faculty member since 2020. Dr. Gaherty’s research utilizes seismic imaging tools to probe major tectonic processes shaping Earth’s surface, combining quantitative seismic analysis with broader geodynamic understanding to address fundamental questions about plate tectonics, mantle dynamics, and surface deformation. His program is very student focused, and he brings extensive experience from major research institutions including Lamont-Doherty Earth Observatory of Columbia University and Georgia Institute of Technology.

Research Interests

Earthquake Seismology

• Quantitative analysis of seismic signals to understand tectonic processes
• Investigation of faulting mechanisms and surface deformation
• Seismological studies of earthquake-related processes and hazards

Upper Mantle Structure and Dynamics

• Seismic imaging of crust and mantle structure
• Investigation of mantle anisotropy and convection processes
• Understanding lithospheric plate formation and evolution

Tectonic and Geodynamic Processes

• Continental rifting processes, particularly in East Africa
• Subduction zone dynamics, including western US systems
• Magmatic processes and their relationship to tectonic activity
• Surface deformation and its underlying geodynamic controls

Education

• Ph.D. Geophysics, Massachusetts Institute of Technology
  • Dissertation: “Structure and Anisotropy of the Upper Mantle”
• M.S. Geology, University of Michigan
• B.S. Geology-Physics/Mathematics, Brown University

Career History

Academic Positions

• Professor of Geophysics, Northern Arizona University (2020-present)
• Lamont Research Professor, Lamont-Doherty Earth Observatory, Columbia University (2002-2019)
• Associate Director, Lamont-Doherty Earth Observatory (2013-2019)
• Assistant Professor, School of Earth and Atmospheric Sciences, Georgia Institute of Technology (1998-2002)

Research Experience

• Research Scientist, Lamont-Doherty Earth Observatory
• Post-Doctoral Associate, Massachusetts Institute of Technology
• Graduate Research and Teaching Assistant, MIT and University of Michigan

Industry Experience

• Environmental Geologist, ICF Technology Inc.

Major Research Projects

• Seismic imaging of major tectonic processes from continental rifting in East Africa to subduction off the western US
• Investigation of mantle convection beneath the Pacific basin

Graduate Program Leadership

Dr. Gaherty actively recruits talented scientists for MS and PhD programs. His research group focuses on:

• Seismic data analysis and interpretation
• Field-based geophysical studies
• Integration of multiple geophysical datasets

Research Impact

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