Annual Meeting - SCEC.org

Report | SCEC Director
The Center supports disciplinary science through standing committees in Seismology, Tectonic Geodesy, and Earthquake
Geology. A new disciplinary committee in Computational Science has been added for SCEC4. These groups (green boxes of
Figure 3) are responsible for disciplinary activities relevant to the SCEC Science Plan, and they make recommendations to the
Planning Committee regarding the support of disciplinary research and infrastructure.
SCEC coordinates earthquake system science through interdisciplinary focus groups (yellow boxes). Four of these groups
existed in SCEC3: Unified Structural Representation (USR), Fault & Rupture Mechanics (FARM), Earthquake Forecasting &
Predictability (EFP), and Ground Motion Prediction (GMP). The Southern San Andreas Fault Evaluation (SoSAFE) project,
funded by the USGS Multi-Hazards Demonstration Project for the last four years, has been transformed into a standing
interdisciplinary focus group to coordinate research on the San Andreas and the San Jacinto master faults. A new focus group
called Stress and Deformation Through Time (SDOT) will merge the activities of two SCEC3 focus groups, Crustal
Deformation Modeling and Lithospheric Architecture and Dynamics. Research in seismic hazard and risk analysis will be
bolstered through a reconstituted Implementation Interface (an orange box in Figure 3) that will include educational as well as
research partnerships with practicing engineers, geotechnical consultants, building officials, emergency managers, financial
institutions, and insurers.
18 | Southern California Earthquake Center
Table 3. SCEC4 Working Group Leadership
Disciplinary Committees
Geology Lisa Grant Ludwig*
Mike Oskin
Seismology Egill Hauksson*
Cochran
Geodesy Jessica Murray-­‐Moraleda*
Dave Sandwell
Computational Science Yifeng Cui*
Eric Dunham
Focus Groups
Structural Representation John Shaw*
Brad Aagaard
Fault & Rupture Mechanics Judi Chester*
Jean-Paul (Pablo) Ampuero
Southern San Andreas Fault Evaluation Kate Scharer*
Ramon Arrowsmith
Stress & Deformation Over Time Kaj Johnson*
Thorsten Becker
Earthquake Forecasting & Predictability Jeanne Hardebeck*
Ilya Zaliapin
Ground Motion Prediction Kim Olsen*
Rob Graves
Engineering Implementation Interface Jack Baker*
Jacobo Bielak
Special Project Groups
Community Modeling Environment Phil Maechling*
WG on Calif. Earthquake Probabilities Ned Field*
Collaboratory for Study of Earthquake Predictability Tom Jordan
Danijel Schorlemmer*
* Planning Committee members
SCEC sponsors Technical Activity Groups (TAGs), which self-organize to develop and test critical methodologies for solving
specific problems. TAGs have formed to verify the complex computer calculations needed for wave propagation and dynamic
rupture problems, to assess the accuracy and resolving power of source inversions, and to develop geodetic transient detectors
and earthquake simulators. TAGs share a modus operandi: the posing of well-defined “standard problems”, solution of these
problems by different researchers using alternative algorithms or codes, a common cyberspace for comparing solutions, and