Haiyang Kehoe
Graduate Student
University of Arizona
Department of Geosciences

About Me

I am a second-year Ph.D. student working with Eric Kiser in the Global Seismology and Tectonics (GSAT) group at the University of Arizona. I investigate the relationship between earthquake source properties, physical mechanisms that control slip on faults, and social hazards. Our primary tool for investigating the source properties of large earthquakes is the back-projection method, for which we have developed a new genetic algorithm-based approach that selects an optimal subset of seismic stations that reduces artifacts and increases the resolution of back-projection results (see Projects).

Projects

Large volumes of volcanic output and high rates of seismicity occurred near the south flank of Kīlauea beginning in April 2018. Associated with this activity was a MW 6.9 earthquake on 4 May 2018. Using a novel genetic algorithm-based back-projection technique, the complex rupture properties of this event are imaged. The dominant feature of this earthquake is a slow western-propagating rupture that overlaps with the location of previous slow slip events. The rupture properties imaged in this study can be explained by slip on a décollement composed of soft sediments with small velocity-weakening asperities.

Curriculum Vitae

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Contact

Haiyang Kehoe
Department of Geosciences
University of Arizona
1040 E. 4th Steet
Tucson, AZ 85721