Major improvements in progress for Southern California Earthquake Monitoring


  • Jim Mori,

    1. U.S. Geological Survey, 525 S. Wilson Ave., Pasadena, CA 91106 USA
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  • Hiroo Kanamori,

  • James Davis,

  • Egill Hauksson,

  • Robert Clayton,

  • Thomas Heaton,

  • Lucile Jones,

  • Anthony Shakal,

  • Ron Porcella


Major improvements in seismic and strong-motion monitoring networks are being implemented in southern California to better meet the needs of emergency response personnel, structural engineers, and the research community in promoting earthquake hazard reduction. Known as the TriNet project, the improvements are being coordinated by the California Institute of Technology (Caltech), the U.S. Geological Survey (USGS), and the California Division of Mines and Geology (CDMG) of the state's Department of Conservation. Already the ambitious instrument and system development project has started to record and disseminate ground motions from a spatially dense and robust network of high quality seismographs.