NEHRP Clearinghouse
- Title
- Cruise Report for A1-00-SC Southern California Earthquake Hazards Project, Part A.
- File
- PB2006105406.pdf
- Author(s)
- Gutmacher, C. E.; Normark, W. R.; Ross, S. L.; Edwards, B. D.; Sliter, R.
- Source
- January 2000, 56 p.
- Identifying Number(s)
- USGS/OFR-00-516
- Abstract
- A three-week cruise to obtain high-resolution boomer and multichannel seismic-reflection profiles supported two project activities of the USGS Coastal and Marine Geology (CMG) Program: (1) evaluating the earthquake and related geologic hazards posed by faults in the near offshore area of southern California and (2) determining the pathways through which sea-water is intruding into aquifers of Los Angeles County in the area of the Long Beach and Los Angeles harbors. The 2000 cruise, A1-00-SC, is the third major data-collection effort in support of the first objective (Normark et al., 1999a, b); one more cruise is planned for 2002. This report deals primarily with the shipboard operations related to the earthquake-hazard activity. The sea-water intrusion survey is confined to shallow water and the techniques used are somewhat different from that of the hazards survey (see Edwards et al., in preparation).
- Keywords
- California; Data collection; Sea water intrusion; Hazards; Faults (Geologic); Earthquakes; Geologic hazards