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Yong Li

Adjunct Associate Professor (Research) of Earth Sciences

Contact Information
E-mail: ygli@usc.edu
Phone: (213) 740-3556
Office: ZHS B11

 

Education

Ph.D. Geophysics (Seismology), University of Southern California, 1987
 

Academic Appointment, Affiliation, and Employment History

Non-Tenure Track Appointments

Research Professor, Earth Sciences, 2013-2014   
Research Professor, Earth Sciences, 2011-2012   
 

Visiting and Temporary Appointments

Honorary Professor, China Academy of Geological Science, 08/21/2012-  
Invited Professor, Fudan University, 2008-2011  
 

Description of Research

Research Specialties

(1) Characterization of earthquake faults includes the pioneering work in discovery and simulation of the fault-zone trapped waves, high-resolution delineation of internal structure and physical properties in 3-D, fault rock co-seismic damage and post-mainshock heal at major active faults in California, Japan, China and New Zealand. (2) Investigation of crustal fracturing and anisotropy in active tectonic margins from shear-wave splitting observations and computation. Developed 2-D and 3-D dynamic ray tracing for seismic waves propagating in the crustal cracked media for evaluation of the in-situ stress states associated with occurrence of earthquakes. (3) Investigation of the crustal structure and evolution by seismic reflection/refraction profiling at Western U.S (COCOOP). Developed a combination computer modeling procedure of multi-channel reflection/refraction profiles, ray tracing, gravity and plate flexure to interpret the seismotectonic structures. (4) Analysis of earthquake source parameters using the method of joint inverse of source and path effects, and the Empirical Green's Function (EGF) method to study the dependence of corner frequency with depth and the stress drop with seismic moment. (5) High-resolution image using fault-zone guided waves for the subsurface water-born fracture zone in geothermal areas and 3-D tomography migration to image the shape of geothermal reservoir, aiming at the development of sustainable renewal energy from deep geothermal resources in the world.
 

Publications

Book

Li, Y. (2014). Seismic Imaging, Fault Damage and Heal. (Vol. V2). Beijing and Boston: China High Education Press and De Gruyter.
Li, Y. (2012). Imaging, Modeling and Assimilation in Seismology. (Vol. V1). Beijing in China and Boston in US: China High Education Press and De Gruyter.
 

Book Chapter

Li, Y. (2014). Co-seismic damage and post-mainshock healing of fault rocks at Landers, Hector Mine and Parkfield, California viewed by fault-zone trapped waves. Seismic Imaging, Fault Damage and Heal (Vol. V2). pp. 173-248. Beijing and Boston: China Higher Education Press and Walter De Gruyter.
Li, Y. (2014). Subsurface rupture structure of the M7.1 Darfield and M6.3 Christchurch earthquake sequence viewed with fault-zone trapped waves. Seismic Imaging, Fault Damage and Heal (Vol. V2). pp. 249-322. Beijin and Boston: China Higher Education Press and Walter De Gruyter.
Li, Y. (2012). Fault-Zone Trapped Waves: High-Resolution Characterization of the Damage Zone of the Parkfield San Andreas Fault at Depth. Imaging, Modeling and Assimilation in Seismology (Vol. V1). pp. 107-150. Beijing in China and Boston in US: China High-Education Press with De Gruyter.
Li, Y. (2012). Fault-zone trapped waves at a dip fault: Documentation of rock damage on the thrusting Longmen-Shan fault ruptured in the 2008 M8 Wenchuan earthquake. Imaging, Modeling and Assimilation in Seismology (Vol. V1). pp. 151 - 198. Beijing in China and Boston in US: China High Education Press and De Gruyter.
 

Journal Article

Li, Y. (2014). Rock damage structure of the south Longmen-Shan fault in the 2008 M8 Wenchuan earthquake viewed with fault-zone trapped waves and scientific drilling. Acta Geological Sinica (English Edition)/China Academy of Geosicence. Vol. 88 (2), pp. 444-467.
Li, Y. (2014). Fault damage zones of the M7.1 Darfield and M6.3 Christchurch earthquakes characterized by fault-zone trapped waves. Tectonophysics. Vol. 618 (2014), pp. 79-101.
Duan, B. (2011). Deformation of compliant fault zones induced by nearby earthquakes: Theoretical investigations in two dimensions. Journal of Geophysics Research. Vol. B3 (116), pp. 12.
Li, Y. (2010). Fault Damage in the 2008 M8 Wenchuan Earthquake Epicentral Region. Academic Prospective. Vol. V6 (No. 1), pp. 2-16.
Li, Y. (2009). High-resolution imaging of the San Andreas Fault damage zone from SAFOD main-hole and surface seismic records. PAGEOPH. Vol. Special/ISESEP
Cochran, E. E., Li, Y., Shearer, P., Vidale, J. (2009). Seismic and geodetic evidence for extensive, long-lived fault. Geology. Vol. v37 No. 4 (doi: 10.1130/G25306A), pp. 315–318.
Li, Y. G. (2008). San Andreas Fault damage at SAFOD viewed with fault-guided waves. Geophysical Research Letter. Vol. 35 (L08304/doi:10.1029/2007GL032924), pp. 6.
Li, Y. (2008). Seismic Study of the San Andreas Fault in California and the Longmen-Shan Fault Ruptured in the 2008 M8 Wenchuan Earthquake in China. Academic Prospective/CSASC. Vol. 4, pp. 155-167.
Li, Y. (2007). Parkfield fault-zone guided waves: Low-velocity damage zone on the San Andreas fault at depth near SAFOD site at Parkfield by fault-zone trapped waves. Scientific Drilling/IODP. Vol. Sepetember, , Special Issue No. 1 (doi:10.2204/iodp.sd.s01.09.2007), pp. 73-77.
Li, Y. G. (2007). Seismic Velocity Variations on the San Andreas Fault Caused by the 2004 M6 Parkfield Earthquake and Their Implications. Earth, Planets and Space/TERRAPUB. Vol. 59, pp. 21-31.
Li, Y. G. (2007). Low-velocity damage zone on the San Andreas fault at depth near SAFOD site at Parkfield by fault-zone trapped waves. Scientific Drilling. (Special Issue, No. 1), pp. 73-77.
Li, Y. G. (2006). Seismic evidence for rock damage and healing on the San Andreas fault associated with the 2004 M6 Parkfield earthquake, Special issue for Parkfield M6 earthquake. Bulletin of Geological Society of America. Vol. 96 (No.4), pp. S1-15, doi:10.1785/0120050803.
Cochran, E. S., Li, Y. G. (2006). Anisotropy in the shallow crust observed around the San Andreas fault before and after the 2004 M6 Parkfield earthquake. Bull. Seism. Soc. Am.. Vol. 96, pp. 364-375.
Li, Y. G. (2004). Low-velocity damaged structure of the San Andreas fault at Parkfield from fault-zone trapped waves. Geophysical Research Letters/American Geophysical Union. Vol. V31, pp. 1-5, L12S06.
Oglesby, D. D., Day, S. M., Li, Y. G. (2003). The 1999 Hector Mine earthquake: The dynamics of a branched fault system. Bull. Seism. Soc. Am.. Vol. 93, pp. 2459-2476.
Li, Y. G. (2003). Characterization of rupture zones at Landers and Hector Mine, California in 4-D by fault-zone guided waves. Earth Sci. Frontiers. Vol. V10 (No. 4), pp. 479-505.
Cochran, E. S., Vidale, J. E., Li, Y. G. (2003). Near-fault anisotropy following the Hector Mine earthquake. J. Geophys. Res.. Vol. 108 (B9), pp. 2436-2447.
Li, Y. G. (2003). Post-seismic fault healing on the 1999 M7.1 Hector Mine, California earthquake. Bull. Seism. Soc. Am.. Vol. 93 (No. 2), pp. 853-864.
Li, Y. G. (2003). Multiple-fault rupture of the M7.1 Hector Mine, California, earthquake from fault-zone trapped waves. J. Geophys. Res.. Vol. 108 (ESE 11, 1-25)
Li, Y. G. (2003). Damage to the shallow Landers fault from the nearby Hector Mine earthquake. Nature. Vol. V421, pp. 524-526.
Li, Y. G. (2002). Study of the M7.1 Hector Mine, California, earthquake fault plan by fault-zone trapped waves. Bull. Seism. Soc. Am.,. Vol. 92, pp. 1318-1332.
Li, Y. G. (2001). Shallow seismic profiling at the Punchbowl fault zone, southern California. Shallow seismic profiling at the Punchbowl fault zone, southern California. Vol. 91, pp. 1820-1830.
Li, Y. G. (2001). Characterization of the San Jacinto fault zone near Anza, California, by fault-zone trapped waves. J. Geophys. Res.. Vol. 106, pp. 30676-30688.
Li, Y. G. (2001). Healing of the shallow fault zone from 1994-1998 after the 1992 M7.5 Landers, California, earthquake. Geophy. Res. Lett.. Vol. 28 (No.15), pp. 2999-3002.
Li, Y. G. (2000). Depth-dependent structure of the Landers fault zone from trapped waves generated by aftershocks. J. Geophys. Res.. Vol. 105, pp. 6237-6254.
Li, Y. G. (1999). Shallow structure of the Landers fault zone using explosion-excited trapped waves. J. Geophys. Res.. Vol. 104, pp. 20,257-20,275.
Li, Y., Aki, K. (1998). A delineation of the Nojima fault ruptured in the M7.2 Kobe, Japan, earthquake of 1995 using fault zone trapped waves. J. Geophys. Res.. Vol. 103 (B4), pp. 7247-7263.
Li, Y. G. (1998). Evidence of shallow fault zone strengthening after the 1992 M7.5 Landers, California, earthquake. Science. Vol. V279, pp. 217-219.
Li, Y., Vernon, F. (1997). San Jacinto fault zone guided waves: A discrimination for recently active fault strands near Anza, California. J. Geophys. Res.. Vol. 102 (B6), pp. 11,689-11,701.
Li, Y., Ellsworth, W., Thurber, C. (1997). Observations of fault-zone trapped waves excited by explosions at the San Andreas fault, central California. Bull. Seism. Soc. Am.. Vol. 87 (No. 1), pp. 210-221.
Li, Y. (1996). Shear-wave splitting observations in the Los Angeles basin, California: Implications on stress regimes and crustal fracturing. J. Geophys. Res.. Vol. 101 (B6), pp. 13947-13961.
Li, Y., Vidale, J. E. (1996). Low-velocity fault zone guided waves; numerical investigations of trapping efficiency. Bull. Seism. Soc. Am.. Vol. V86 (No. 2), pp. 371-378.
Li, Y. G. (1994). Fine structure of the Landers fault zone; segmentation and the rupture process. Science. Vol. 256, pp. 367-370.
Li, Y., Aki, K. (1994). Seismic guided waves trapped in the fault zone of the Landers, California, earthquake of 1992. J. Geophys. Res.. Vol. V99 (No. 6), pp. 11,705¬11,722.
Li, Y. (1994). Shear-wave splitting observations in the northern Los Angeles basin, California. Bull. Seism. Soc. Am.. Vol. V84 (No. 2), pp. 307-323.
Li, Y., Henyey, T., Lee, S. (1992). Aspect of crustal tectonics in the Western Mojave Desert, California, from seismic, gravity and magnetic profiling. J. Geophys. Res.. Vol. V97 (No. 6), pp. 8805-8816.
Li, Y., Henyey, T., Leary, P. (1992). Seismic reflection constraints on the structure of the crust beneath the San Bernardino Mountains, Transverse Ranges, southern California. J. Geophys. Res.. Vol. V97 (No. 6), pp. 8817-8830.
Li, Y., Leary, P. (1990). Fault zone trapped seismic waves. Bull. Seism. Soc. Am.. Vol. V80 (No. 5), pp. 1245-1271.
Li, Y. G. (1990). Seismic trapped modes in the Oroville and San Andreas fault zones. Science. Vol. V249, pp. 763-766.
Li, Y., Leary, P., Aki, K. (1990). Ray series modeling of seismic wave traveltime and amplitude in three-dimensional heterogeneous anisotropic crystalline rock: Borehole VSP seismograms from Mojave Desert, California. J. Geophys. Res.. Vol. V95 (No. 7), pp. 11,105-11,358.
Li, Y., Leary, P., Henyey, T. (1988). Stress orientation inferred from shear wave splitting in basement rock at Cajon Pass. Geophys. Res. Letters. Vol. v15 (No. 9), pp. 997-1,000.
Li, Y., Leary, P., Aki, K. (1987). Observation and modeling of fault zone fracture seismic anisotropy -. Geophys. J. R. astr. Soc, V91, No. , pp. 461-492, 1987. Vol. v91, pp. 461-492.
 

Service to the University

Other Service to the University

An Ambassador for USC to promote the international high education between US and China. , 2012-2013   
 

Service to the Profession

Professional Memberships

AGU, SSA, SEG, 2012-2013   
 
 
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