Southern California Edison (SCE) and Scripps Institution of Oceanography at UC San Diego will collaborate on a project to gather seismic data off the coast of the San Onofre Nuclear Generating Station (SONGS). The Scripps team includes experts from around the country to perform the proposed offshore research. Professors Neal Driscoll at Scripps and Graham Kent at the University of Nevada, Reno will co-lead this research effort. The work, part of SCE's seismic research projects for SONGS Units 2 and 3, will involve state-of-the art data-gathering and analysis technologies, and will begin later this year and continue through 2013.
Scripps and University of Nevada, Reno scientists will lead the project, which will include collecting and processing data from 2-D and 3-D multichannel seismic reflection and refraction off San Onofre State Beach. The raw and processed survey data will be open-source and available to other experts to view and use in further studies. This data will also be made available to the general public. Offshore seismic research is conducted with specially equipped boats that tow cables, or streamers, with underwater microphones at regular intervals. Two-dimensional seismic surveys usually have one streamer; three-dimensional surveys have four or more.
"Our number one priority is safety, and seismic safety plays an important role in our operations at the plant," said Caroline McAndrews, SCE director of nuclear strategic projects. "Having Scripps take the lead on this important project will provide us with objective and world-class expertise in geophysics, and increase our understanding of SONGS' seismic setting. This knowledge is key to ensuring the continued safe operation of SONGS."
Besides evaluating the existing and potential faults in the area, the seismic reflection and refraction surveys will image the offshore structures at an unprecedented resolution, and will allow scientists to test the alternative hypotheses for the tectonic deformation observed off San Onofre. In addition, the geophysical surveys will reveal vertical motions of the crust through time, associated with margin reorganization.
Both units of the plant are currently safely shut down for inspections, analysis and tests. Unit 2 was taken out of service Jan. 9 for a planned outage. Unit 3 was safely taken off line Jan. 31 after station operators detected a leak in one of the unit's steam generator tubes.
About Southern California Edison
An Edison International (NYSE:EIX) company, Southern California Edison is one of the nation's largest electric utilities, serving a population of nearly 14 million via 4.9 million customer accounts in a 50,000-square-mile service area within Central, Coastal and Southern California.
About University of Nevada, Reno
Nevada's land-grant university founded in 1874, the University of Nevada, Reno has an enrollment of 18,000 students and is ranked in the top tier of the nation's best universities. Part of the Nevada System of Higher Education, the University has the system's largest research program and is home to the state's medical school. With outreach and education programs in all Nevada counties and with one of the nation's largest study-abroad consortiums, the University extends across the state and around the world. For more information, visit www.unr.edu.
Scripps Institution of Oceanography at the University of California, San Diego, is one of the oldest, largest, and most important centers for global science research and education in the world. Now in its second century of discovery, the scientific scope of the institution has grown to include biological, physical, chemical, geological, geophysical, and atmospheric studies of the earth as a system. Hundreds of research programs covering a wide range of scientific areas are under way today on every continent and in every ocean. The institution has a staff of more than 1,400 and annual expenditures of approximately $195 million from federal, state, and private sources. Scripps operates robotic networks and one of the largest U.S. academic fleets. Birch Aquarium at Scripps serves as the interpretive center of the institution and showcases Scripps research and a diverse array of marine life through exhibits and programming for more than 430,000 visitors each year. Learn more at scripps.ucsd.edu.
About UC San Diego
The University of California, San Diego is a student-centered, research-focused, service-oriented public institution that provides opportunity for all. Recognized as one of the top 15 research universities worldwide and born of a culture of collaboration, UC San Diego sparks discoveries that advance society, drive economic growth and positively impact the world. Our students, who learn from Nobel laureates, MacArthur Fellows and National Academy members, are committed to public service. For the sixth consecutive year, UC San Diego has been ranked first in the nation based on research, civic engagement and social mobility. We are one campus with multiple pillars of excellence, a top ten public university that is transforming lives, shaping new disciplines and advancing the frontiers of knowledge. Learn more at www.ucsd.edu.