Dr. Semechah K. Y. Lui

Academic History

Education
  • Doctor of Philosophy (Ph.D.) in Geophysics, California Institute of Technology (2016)
  • Master of Science (M.Sc.) in Geophysics, California Institute of Technology (2014)
  • Bachelor of Science (B.Sc.) in Geological Sciences, University of Michigan (2011)
Thesis Projects
  • Earthquake source characterization through seismic observations and numerical modeling (Ph.D. Thesis)
    Primary advisors: Don Helmberger & Nadia Lapusta
  • Applications of Unidirectional Flow Models to Lower Crustal Deformation (B.Sc. Honors Thesis)
    Primary advisor: Eric Hetland

Research Interest

Research Interest
  • Earthquake source characterization by waveform modeling
  • Numerical simulation of dynamic fault rupture and earthquake triggering

Publications

Journal Articles
  • K. Y. Lui and N. Lapusta, Modeling the high stress drops and the interactions of the repeating microearthquake sequences in Parkfield (in preparation).
  • K. Y. Lui and N. Lapusta, Repeating microearthquake sequences interact predominantly through postseismic slip, Nature Communications 7, 13020 (2016).
  • K. Y. Lui, D. V. Helmberger, J. Yu and S. Wei. Rapid assessment of earthquake characteristics, Bull. Seismol. Soc. Am., 106 (6), 2490-2499, (2016).
  • K. Y. Lui, D. V. Helmberger, S. Wei, Y. Huang and R. W. Graves. Interrogation of the megathrust zone in the Tohoku-Oki seismic region by waveform complexity: Intraslab earthquake rupture and reactivation of subducted normal faults, Pure Appl. Geophys., 172 (12), 3425-3437 (2015).
Selected Conferences

(* indicates oral presentation)

  • 24th International Congress of Theoretical and Applied Mechanics in Montreal, Quebec (August 2016): Physics-based Elastodynamic Modeling of Interacting Frictional Shear Cracks *
  • Seismological Society of America (SSA) Annual Meeting in Reno, Nevada (April 2016): Enhancing Ground-motion Prediction with Near Real-time Rupture Directivity Assessment
  • American Geophysical Union (AGU) Annual Meeting in San Francisco, California (December, 2015): Modeling Large Stress Drops and Interaction of LA and SF Repeaters at Parkfield.
  • Seismological Society of America (SSA) Annual Meeting in Pasadena, California (April 2015):
    1.    Modeling the LA and SF Repeating Sequences in Parkfield *
    2.    Rapid Assessment of Earthquake Characteristics
  • James K. Knowles & Caltech Solids Symposium in Pasadena, California (February 2015): Elastodynamic Modeling of Interacting Frictional Shear Cracks *
  • American Geophysical Union (AGU) Fall Meeting in San Francisco, California (December 2014): Interaction of Repeating Earthquake Sequences and Its Relation to Fault Friction Properties *
  • School for the study of earthquakes: nucleation, triggering and relationship with aseismic processes in Corsica, France (November 2014): Interaction of Repeating Earthquake Sequences and Its Relation to Fault Friction Properties *
  • Southern California Earthquake Center (SCEC) Annual Meeting in Palm Springs, California (September 2013): Effect of Postseismic Creep on Earthquake Triggering
  • American Geophysical Union (AGU) Annual Meeting in San Francisco, California (December 2012):
    1.    Interrogation of the Megathrust Zone by Waveform Complexity
    2.    Understanding Interaction of Small Repeating Earthquakes through Models of Rate-and-state Faults
  • American Geophysical Union (AGU) Annual Meeting in San Francisco, California (December 2011): Dynamic Controls on the Depth Sensitivity of Lower Crust Viscosity Inferences over Tectonic Time Scales
  • Geological Society of America (GSA) Annual Meeting in Denver, Colorado (October 2010): Artificially-produced Heavy Ion Tracks in Mica Studied by Atomic Force Microscopy

Contact

University of Toronto;
Department of civil and mineral engineering;
Rock physics and Geomechanics research group
Room MB108, 170 college street;
Toronto, Ontario, Canada, M5S 3E3
Email: semechah.lui@utoronto.ca