Hao Zhang

A

There are more things in heaven and earth
than are dreamt of in your philosophy.

Photo @ Death Valley

About

Biography

I am a postdoctoral fellow at the Seismological Laboratory, California Institute of Technology (Caltech). I obtained my Ph.D. in Geological Sciences from the University of Southern California (USC) in 2025. Prior to my doctoral studies, I served as a research assistant at the Institute of Geophysics, China Earthquake Administration, from 2020 to 2021. I received my B.Sc. in Geophysics from Peking University (PKU) in 2020.

Research Interests

As an observational geophysicist, my research focuses on applying seismological approaches to constrain the dynamics and evolution of tectonic plates, the cryosphere, and other terrestrial bodies (e.g., the Moon and Mars). My work aims to uncover fundamental physical principles that govern seismic behavior across diverse geophysical systems. I am particularly interested in how seismic observations bridge processes across scales and environments.

Dinner with Heidi, John, Yehuda and Tom after my PhD defense

News

  • 01/2026 My paper Large megathrust earthquakes in cold mantle wedge corners under lawsonite blueschist facies is accepted by Nature Communications
  • 06/2025 I start my new position as a postdoctoral scholar research associate at Caltec.
  • 04/2025 I successfully defended my Ph.D. thesis!
  • 04/2025 I have started my service on the AGU Seismology Session Early Career Subcommittee
  • 01/2025 I received postdoc fellowships from both SeismoLab at Caltech and IGPP, UCSD

Resume

Education

Doctor of Philosophy in Geological Sciences

2021 - 2025

University of Southern California, Los Angeles, CA

  • Advisors: John E. Vidale & Yehuda Ben-Zion
  • Dissertation: Dynamics and Structure of Subduction Zones Unveiled through Novel Seismological Techniques

Bachelor of Science in Geophysics

2016 - 2020

Peking University, Beijing, China

  • Advisors: Xiaofei Chen & Shiyong Zhou
  • Thesis: Frequency-Bessel Transform Method to Extract Higher-Mode Rayleigh Dispersion Curves

Professional Experience

Postdoctoral Scholar Research Associate

2025 - Now

Seismological Laboratory, Caltech, Pasadena, CA

Research Assistant

2020 - 2021

Institute of Geophysics, China Earthquake Administration, Beijing, China

Selected Honors & Awards

  • 2025 Cecil H. and Ida M. Green Postdoctoral Fellowship, IGPP, UCSD
  • 2025 Geophysics Option Postdoctoral Fellowship, Caltech
  • 2024 Earth Sciences Graduate Student Research Award, USC
  • 2020 Distinguished Graduate, PKU
  • 2020 Distinguished Graduate, Beijing City
  • 2019 Outstanding Research Award, PKU

Publications

* Only first / corresponding-author papers are listed. Full list available on [Google Scholar]

  • [8] Zhang, H., Zhai, Q., Reid-McLaughlin, A., Park, S., Chamberlin, T., Costa, L., Kubiak, G., Lefler, C., Steinkraus, J., Klesh, A., Kaip, G. & Zhan, Z., Monitoring Glacial Grounding Zone Icequakes With Fiber-Optic and Dense Seismic Arrays (in prep.)
  • [7] Zhang, H. & Zhan, Z., Illuminating ruptures of moderate earthquakes with multi‑fibre networks (under review in Sci. Adv.)
  • [6] Zhang, H. & Vidale, J.E., Earthquake Shaking Scales with Rupture Complexity Revealed by Aftershock Pattern (under review in Proc. Nat. Acad. Sci.)
  • [5] Zhang, H., Barbot, S., Yang, Z., Zhang, L., Liu, M. & Platt, J., Large megathrust earthquakes in cold mantle wedge corners under lawsonite blueschist facies, Nature Commun., in press
  • [4] Zhang, H., Vidale, J.E. & Wang, W. (2025) Aftershocks on the planar rupture surface of the deep-focus Mw 7.9 Bonin Islands earthquake, The Seismic Record, 5(1): 35-43
  • [3] Zhang, H., Vidale, J.E. & Wang, W. (2024) Scattering evidence for an ancient subducted slab using the novel raypath P*PKP, Geophy. Res. Let., 51, e2024GL110130
  • [2] Zhang, H. & Ben-Zion, Y. (2024) Enhancing regional seismic velocity model with higher-resolution local results using sparse dictionary learning, JGR: Solid Earth, 129, e2023JB027016
  • [1] Zhang, H., Meng, H. & Ben-Zion, Y. (2023) Lateral Variations Across the Southern San Andreas Fault Zone Revealed from Analysis of Traffic Signals at a Dense Seismic Array, Geophy. Res. Let., 50, e2023GL103759
Incremental
Novel
Solid
Preliminary
Published/Accepted
In Review
In Prep.

Self-assessment of my published work in the dimensions of novelty and solidity.

Contact

Location:

South Mudd Room 266, 1200 E. California Blvd., Pasadena, CA 91125

Last Update: January 2026