Arrays of seven seismometers were placed at five sites in the Santa Clara valley for the purpose of observing the microtremor (background seismic noise) field. The field is to be analysed using the SPAC technique in order to determine the shear-wave velocity profile to bedrock beneath each of the sites. April 22, 2004 through April 30, 2004.
EarthScope Consortium operates the
NSF Geodetic Facility for the Advancement of Geoscience (GAGE)
and NSF Seismological Facility for the Advancement of Geoscience (SAGE).
Any opinions, findings and conclusions, or recommendations expressed
in this material do not necessarily reflect the views of the
U.S. National Science Foundation.