48 IRIS/PASSCAL were deployed from November 1994 to late May 1995. The array had an aperture of 15km and was intended to record high resolution seismograms for P and S wave tomographic imaging of the San Andreas Fault.
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.