This site is located at the 101/280 freeway interchange in San Jose at  37.3393, -121.8520 (approx 31m elevation). A single Granite unit records a surface Episensor and three downhole Hyposensors at 17, 42 and 91m. UCSB assisted in the downhole installations on 3/2/16. The deep hyposensor had a compass and was glass beaded in at 347.2o magnetic, within 1 degree of true-North, and the other two hyposensors were installed with loading-poles, rotated and aligned to true-North.



The UCSB Geotechnical Array monitoring program is funded by the United States Nuclear Regulatory Commission (NRC)  under
Contract# NRC-HQ-60-15-C-0001 Project title: "Observations and Analysis of Geotechnical Array Data"

This site previously funded (2004 to 2014) by the Geoge E. Brown, Jr. Network for Earthquake Engineering Simulation (NEES) Program of the National Earthquake Hazards Reduction Program (NEHRP) of the National Science Foundation (NSF) under Award Number CMMI-0927178.