High-Resolution imaging and monitoring of the subsurface structure and seismicity at a site along the San Jacinto fault zone using a dense seismic nodal array. The site is located about 6 km northwest of the town of Anza, California. The type of nodal sensor employed is the Fairfield Zland 3-component 5 Hz geophones (records ground velocity continuously at 500 sps). The array consists of 97 sensors, with 65 located along a linear across-fault profile and the remaining 32 sensors scattered around that profile and along the fault. The array spans a 2400 m by 1400 m area.
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