I am a postdoctoral researcher in earthquake seismology, recently graduated from Scripps Institution of Oceanography's
Institute of Geophysics and Planetary Physics in La Jolla, CA.
In January 2018, I began a postdoctoral research fellowship at in the Earth and Environmental Sciences Division at Los Alamos National Laboratory, in New Mexico.
With my new position at LANL, I now have a new homepage,
so be sure to check there for my latest research updates.
My Ph.D. research was advised by Peter Shearer,
a guru of observational seismology and professor of Geophysics at Scripps.
My dissertation focused on characterizing how earthquake source properties and occurrence patterns
vary in space and evolve in time. These studies provide quantitative constraints on
the true natural variability in earthquake occurrence that can be used to improve the next generation
of seismic hazard assessments. A better understanding of this variability,
including the deviant, outlier earthquakes with unusual source properties,
also provide insight into the physics underlying earthquake nucleation,
stress-driven triggering, and earthquake-earthquake interaction.
Research projects, past and present, include:
- Using machine learning algorithms to quantify and understand the relationship between dynamic earthquake source properties and
ground motion amplitudes for earthquakes in the San Francisco Bay Area
- Improving methodology for making reliable source spectral estimates for large data sets, and applying these methods
to study source properties of natural, triggered, and induced earthquakes (link)
- Quantifying scaling relationships for the dynamic properties of the earthquake source, and understanding
the implications of non-self-similar scaling for rupture processes and seismic hazard (link)
- Improving numerical algorithms for large-scale earthquake relocations based on waveform cross-correlation
of similar event clusters (link)
- Studying long-term changes in the patterns of seismicity in California's geothermal fields
- Satellite geodetic measurements of subsidence at the Cerro Prieto Geothermal Field (Mexico),
and its potential influence on seismic hazard
- Statistical tests to detect and measure clustering in earthquake catalogs
- Low Frequency Earthquake clustering and interaction at Parkfield, CA
- Numerical modeling of dynamically triggered tremor
- Statistics-driven source modeling of fully dynamic earthquake rupture simulations on fractally rough faults
2017: Ph.D. Earth Sciences/Geophysics, University of California - San Diego
2015: M.S. Earth Sciences/Geophysics, University of California - San Diego
2013: B.S. Geophysics, Stanford University
dtrugman .at. lanl .dot. gov
Los Alamos National Laboratory
Los Alamos, NM, 87545