WEI Shengji


My research interests are mainly focused on earthquake source studies both in real time and later in-depth research. Recently, I have also become interested in slab structures and their impact on source studies. Besides working on seismic waveforms, I also include results from optical and SAR imaging of ground deformation. My research experiences cover both natural and man-made earthquakes. My approach for resolving the kinematic nature of earthquakes involves the combination of geodesy, geology and seismology to better constrain the spatial-temporal evolution of seismic rupture properties. Besides reconciling various datasets, I have developed techniques that allow waveform inversions to be extended to the higher frequency (>1Hz) range of relevance for damage assessment. Path calibrations also allow us to report earthquake source parameters more accurately in real time, and warnings can be issued based on these information.

My research interests are:

  • Real time seismology
  • Earthquake focal mechanism inversion
  • Kinematic finite fault inversion, involving joint constraints from geodetic, seismological, tsunami and field observations
  • Strong ground motion simulation with 3-dimensional velocity structure and their potential application to earthquake engineering
  • Crustal to upper mantle scale velocity structure study, aim to establish path calibrations for earthquake studies and image slab structure in the subduction zones
  • Mar. 2008 ~ Feb. 2009: Visiting Student, Seismolab at Caltech
  • Sep. 2004 ~ July 2009, Ph.D., Geophysics, Univ. of Sci. and Tech. of China (USTC)
  • Sep. 2000 ~ July 2004, B.S., Geophysics, Univ. of Sci. and Tech. of China (USTC)
Professional Experience:
  • Oct. 2014 ~ now: Assistant Professor,Earth Observatory of Singapore, Nanyang Technological University
  • Sep. 2009 ~ Oct. 2014: Post-doctoral research fellow, Seismological Laboratory, Caltech
  • Sep. 2004 ~ July 2009: Research assistant, Department of Geophysics, USTC
  • Feb. 2006 ~ Feb. 2008: Research assistant, Institute of Geophysics, China Earthquake Administration
  • 2005-2006: Teaching Assistant, Mechanics, University of Science and Technology of China
  • 2009-2013: Teaching Assistant, Advanced Seismology, California Institute of Technology
Professional Activities:
  • Member of AGU since 2008
  • Member of the Southern California Earthquake Center
  • Peer reviewer for journals of BSSA, SRL, GRL, Earthquake Science, Chinese Journal of Geophysics (in Chinese), Tectonophysics