Seafloor earthquake measurement system
The Seafloor Earthquake Measurement Project has had two principal objectives. The first being to design, fabricate and yield systems to measure the response of seafloor sediment to earthquakes. The second objective is to utilize data obtained from the measurement system to validate and if necessary, modify existing models for seafloor earthquake response. Two significant earthquakes were measured by the Seafloor Earthquake Measurement System (SEMS) during July 1986. Preliminary analysis of the sediment response measurements obtained by SEMS indicates that, (1) the seabed responds comparably to the ground in terms of its vibrational frequency, (2) the sediments vibrate primarily in the horizontal directions, and (3) the data confirms the presence of distance-dependent wave attenuation. Further analysis of this data set and future off-shore seismic recordings should give invaluable insight into the design of offshore structures. 3 refs., 6 figs., 1 tab.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (USA)
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 6067782
- Report Number(s):
- SAND-87-1652C; CONF-870728-6; ON: DE87013065
- Country of Publication:
- United States
- Language:
- English
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DESIGN
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MEASURING INSTRUMENTS
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SEDIMENTS
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