HR: 1400h
AN: G43A-03 [Abstracts]
TI: A Contribution to Mitigating Seismic Risk in the Bay Area: The Bay Area Regional Deformation (BARD) GPS Network
AU: Houlie, N
EM: houlie@seismo.berkeley.edu
AF: Berkeley Seismological Lab., 215, Mc Cone Hall
Berkeley Seismological Lab. - UC Berkeley, Berkeley, CA 94720, United States
AU: Romanowicz, B
EM: barbara@seismo.berkeley.edu
AF: Berkeley Seismological Lab., 215, Mc Cone Hall
Berkeley Seismological Lab. - UC Berkeley, Berkeley, CA 94720, United States
AU: * Hellweg, P
EM: peggy@seismo.berkeley.edu
AF: Berkeley Seismological Lab., 215, Mc Cone Hall
Berkeley Seismological Lab. - UC Berkeley, Berkeley, CA 94720, United States
AB:
In the San Francisco Bay Area (SFBA), two million people live in a geologically complex, tectonically active region
that has experienced several historic earthquakes, including the 1868 Hayward, the 1906 San Francisco, and
1989 Loma Prieta earthquakes. Geodetic measurements, which are especially useful for detecting deformation
and strain on deep structures throughout the seismic cycle, show that Bay Area deformation is both spatially
complex and varying with time. Increasingly, GPS data can also be used in real time to complement seismic data
in providing robust real-time earthquake information, and, potentially, early warning. The Bay Area Regional
Deformation (BARD) network of permanent, continuously operating Global Positioning System (GPS) receivers
monitors crustal deformation in the Bay Area and northern California. BARD is a network collocated with several
seismic networks (BDSN, NHFN, mini-PBO) operating in Northern California. As the local determination of
magnitude is problematic for large earthquakes, the GPS will provide strong constraints on rupture geometry and
amount of slip along the slipping fault. Thus, the collocation of all the networks will help mitigate earthquake-
related risks associated with an earthquake in the SFBA or in northern California.
UR: http:www.ncedc.org/bard/
DE: 1240 Satellite geodesy: results (6929, 7215, 7230, 7240)
DE: 7200 SEISMOLOGY
DE: 8110 Continental tectonics: general (0905)
SC: Geodesy [G]
MN: 2007 Joint Assembly