John M. Rekoske

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jrekoske@ucsd.edu

Hello! I am a geophysics Ph.D. candidate at Scripps Institution of Oceanography, UC San Diego. As a seismologist, I currently work with Alice-Agnes Gabriel and Dave May on reduced-order modeling techniques for simulating earthquake ground motion and understanding source physics. More generally, I am interested in understanding earthquake source mechanics and the propagation of seismic waves, with a focus on seismic hazard and earthquake early warning. In my research, I use hybrid (physics-based coupled with machine learning) models, high-performance computing, and other emerging technologies (e.g., distributed acoustic sensing) to better understand and mitigate earthquake hazard.

Previously, I worked as a Pathways Intern at the U.S. Geological Survey where I helped to develop the USGS Automated Ground Motion Processing Software. I also constructed databases of earthquake ground motion in the Pacific Northwest, California, Alaska and Hawaii, which have helped to inform the earthquake hazard in those regions. As an undergraduate at Colorado School of Mines, I worked with Ebru Bozdag on global seismological problems to probe the physical properties of the Earth’s outer core and mantle with numerical seismic wave simulations.

News

Feb 04, 2025 Our paper, Reduced-order modelling for complex three-dimensional seismic wave propagation, was just published in Geophysical Journal International – go check it out!

Selected Publications

  1. ff_wavefield_animation.gif
    Reduced-order modelling for complex three-dimensional seismic wave propagation
    John M. Rekoske, Dave A May, and Alice-Agnes Gabriel
    Geophysical Journal International, 2025
  2. pgv_modes.png
    Instantaneous Physics-Based Ground Motion Maps Using Reduced-Order Modeling
    John M. Rekoske, Alice-Agnes Gabriel, and Dave A. May
    Journal of Geophysical Research: Solid Earth, 2023
  3. ridgecrest_data.png
    The 2019 Ridgecrest, California, Earthquake Sequence Ground Motions: Processed Records and Derived Intensity Metrics
    John M. Rekoske, Eric M. Thompson, Morgan P. Moschetti, and 3 more authors
    Seismological Research Letters, 2020
  4. temblor_img.png
    Knock, knock, knocking on your door–the Julian earthquake in southern California issues reminder to be prepared, Temblor
    D. Kilb, A.-A. Gabriel, J. M. Rekoske, and 1 more author
    Temblor, 2025
  5. science_cover.jpg
    The Complex Dynamics of the 2023 Kahramanmaraş, Turkey, Mw 7.8-7.7 Earthquake Doublet
    Zhe Jia, Zeyu Jin, Mathilde Marchandon, and 9 more authors
    Science, 2023