HR: 15:00h
AN: S33C-05    [Abstracts]
TI: ANZA Seismic Network- From Monitoring to Science
AU: * Vernon, F
EM: flvernon@ucsd.edu
AF: IGPP, UCSD, IGPP UCSD, La Jolla, CA 92o93-0225, United States
AU: Eakin, J
EM: jeakins@ucsd.edu
AF: IGPP, UCSD, IGPP UCSD, La Jolla, CA 92o93-0225, United States
AU: Martynov, V
EM: vladik@epicenter.ucsd.edu
AF: IGPP, UCSD, IGPP UCSD, La Jolla, CA 92o93-0225, United States
AU: Newman, R
EM: rlnewman@ucsd.edu
AF: IGPP, UCSD, IGPP UCSD, La Jolla, CA 92o93-0225, United States
AU: Offield, G
EM: goffield@ucsd.edu
AF: IGPP, UCSD, IGPP UCSD, La Jolla, CA 92o93-0225, United States
AU: Hindley, A
EM: ahindley@ucsd.edu
AF: IGPP, UCSD, IGPP UCSD, La Jolla, CA 92o93-0225, United States
AU: Astiz, L
EM: lastiz@ucsd.edu
AF: IGPP, UCSD, IGPP UCSD, La Jolla, CA 92o93-0225, United States
AB: The ANZA Seismic Network (http:eqinfo.ucsd.edu) utilizes broadband and strong motion sensors with 24-bit dataloggers combined with real-time telemetry to monitor local and regional seismicity in southernmost California. The ANZA network provides real-time data to the IRIS DMC, California Integrated Seismic Network (CISN), other regional networks, and the Advanced National Seismic System (ANSS), in addition to providing near real-time information and monitoring to the greater San Diego community. Twelve high dynamic range broadband and strong motion sensors adjacent to the San Jacinto Fault zone contribute data for earthquake source studies and continue the monitoring of the seismic activity of the San Jacinto fault initiated 24 years ago. Five additional stations are located in the San Diego region with one more station on San Clemente Island. The ANZA network uses the advance wireless networking capabilities of the NSF High Performance Wireless Research and Education Network (http:hpwren.ucsd.edu) to provide the communication infrastructure for the real-time telemetry of Anza seismic stations. The ANZA network uses the Antelope data acquisition software. The combination of high quality hardware, communications, and software allow for an annual network uptime in excess of 99.5% with a median annual station real-time data return rate of 99.3%. Approximately 90,000 events, dominantly local sources but including regional and teleseismic events, comprise the ANZA network waveform database. All waveform data and event data are managed using the Datascope relational database. The ANZA network data has been used in a variety of scientific research including detailed structure of the San Jacinto Fault Zone, earthquake source physics, spatial and temporal studies of aftershocks, array studies of teleseismic body waves, and array studies on the source of microseisms. To augment the location, detection, and high frequency observations of the seismic source spectrum from local earthquakes, the ANZA network is receiving real-time data from borehole arrays located at the UCSD Thornton Hospital, and from UCSB's Borrego Valley and Garner Valley Downhole Arrays. Finally the ANZA network is acquiring data from seven PBO sites each with 300 meter deep MEMs accelerometers, passive seismometers, and a borehole strainmeter.
DE: 7294 Seismic instruments and networks (0935, 3025)
SC: Seismology [S]
MN: 2007 Joint Assembly