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SCEC Research Accomplishments | Report
database searches and easier identification of fault components, alternative representations, and possible system-level
associations of individual 3D fault elements that comprise CFM.
Finally, we also completed a second version of the statewide Community Fault Model (SCFM 2.0), which includes updates in
the southern California model along with more than 150 new fault representations in northern California (Figure 17). In
conjunction with the California Geological Survey and USGS, the model inventory was expanded to include all of the priority
faults defined by the Uniform California Earthquake Rupture Forecast (UCERF 3) working group. We are currently
coordinating our formal evaluation of the SCFM with the UCERF 3 effort. This will involve a virtual workshop in which
participants evaluate the SCFM 2.0 using the SCEC VDO visualization software and be asked to assess the accuracy and
completeness of the representations. This
will involve assigning a quality ranking
to each fault representation based on
criteria used to evaluate the SCEC CFM.
These rankings, which largely reflect the
amount of data available to directly
constrain the interpretations, will be
used to rank alternative fault
representations, with the highest ranked
alternative being used to compose the
preferred (versioned) fault model.
References
Anderson, M. L., C. W. Roberts, and R. C.
Jachens, 2000, Principal facts for
Figure 17. Perspective view of the Statewide CFM (SCFM 2.0), which includes more than
gravity stations in the vicinity of San
300 fault representations. Earthquakes are shown from Shearer et al., (2005).
Bernardino, southern California, U.S.
Geol. Surv. Open-File Rept. 00-193, 32 pp.
Chen, P., Lee, E., Jordan, T. H., Maechling, P. J., Denolle, M., & Beroza, G. C., 2011, Full-3D Waveform Tomography for
Southern California, 2011 SSA Annual Meeting, Memphis, TN.
Chen, P., L. Zhao, Li, T. H. Jordan, 2007, Full 3D tomography for the crustal structure of the Los Angeles region, Bulletin of the
Seismological Society of America, vol.97, no.4, pp.1094-1120.
Graves, R., 2008, The Seismic Response of the San Bernardino Basin Region during the 2001 Big Bear Lake Earthquake,
Bulletin of the Seismological Society of America, Vol. 98, No. 1, pp. 241–252.
Komatitsch, D., Q. Liu, J. Tromp, P. Süss, C. Stidham, and J. H. Shaw, (2004), Simulations of strong ground motions in the Los
Angeles basin based upon the spectral element method, BSSA, Vol. 94, No. 1, pp. 187–206.
Lee, E., Chen, P., Jordan, T. H., Maechling, P. J., Denolle, M., & Beroza, G. C., 2010, Full-3D Waveform Tomography for
Southern California, 2010 AGU Fall Meeting, San Francisco, CA.
Magistrale, H., S. Day, R. W. Clayton, and R. Graves, 2001, The SCEC Southern California Reference Three-Dimensional
Seismic Velocity Model Version 2: Bulletin of the Seismological Society of America, v. 90, no. 6B, p. S65-S76.
Mayhew, J.E., and K.B. Olsen (2009). Goodness-of-fit criteria for broadband synthetic seismograms, with application to the
2008 Mw5.4 Chino Hills, CA, earthquake, submitted to Seism. Res. Lett.
Nicholson, C., A. Plesch, J.H. Shaw, 2011, CFM v.4.0: Continued upgrades and improvements to the SCEC Community Fault
Model and its associated databases, 2011 SCEC Annual Meeting, Palm Springs, CA.
Olsen, K. B., and J. E. Mayhew (2010), Goodness-of-fit criteria for broadband synthetic seismograms, with application to the
2008 Mw 5.4 Chino Hills, California, earthquake, Seis. Res. Lett., 81 (5), 715–718.
Plesch, A., John H. Shaw, Christine Benson, William A. Bryant, Sara Carena, Michele Cooke, James Dolan, Gary Fuis, Eldon
Gath, Lisa Grant, Egill Hauksson, Thomas Jordan, Marc Kamerling, Mark Legg, Scott Lindvall, Harold Magistrale, Craig
Nicholson, Nathan Niemi, Michael Oskin, Sue Perry, George Planansky, Thomas Rockwell, Peter Shearer, Christopher
Sorlien, M. Peter Süss, John Suppe, Jerry Treiman, and Robert Yeats, 2007, Community Fault Model (CFM) for Southern
California, Bulletin of the Seismological Society of America, v. 97, no. 6.
Plesch, A., C. tape, and J.H. Shaw, 2009, CVM-H 6.0: integration of adjoint-based tomography, the San Joaquin basin and other
advances in the SCEC community velocity model, SCEC Annual Meeting, Palm Springs, CA.
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