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Ocean bottom seismic instrumentation
Ewoldsen, H. (1983). Ocean bottom seismic instrumentation, in: Ritsema, A.R. et al. (Ed.) Seismicity and seismic risk in the offshore North Sea area: Proceedings of the NATO Advanced Research Workshop, held at Utrecht, The Netherlands, June 1–4, 1982. NATO ASI Series C: Mathematical and physical sciences, 99: pp. 183-185. hdl.handle.net/10.1007/978-94-009-7046-5_19
In: Ritsema, A.R.; Gürpinar, A. (Ed.) (1983). Seismicity and seismic risk in the offshore North Sea area: Proceedings of the NATO Advanced Research Workshop, held at Utrecht, The Netherlands, June 1–4, 1982. NATO ASI Series C: Mathematical and physical sciences, 99. D. Reidel Publishing: Dordrecht. ISBN 90-277-1529-7. xxiv, 420 pp., more
In: NATO ASI Series C: Mathematical and Physical Sciences. D. Reidel: Dordrecht; Boston; Lancaster. ISSN 0258-2023, more

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    Marine

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  • Ewoldsen, H.

Abstract
    Of particular interest to resource development companies operating in moderate to highly seismic offshore zones, is the level of seismic motions to which their offshore structures may he subjected during the life of the facility. Moderate to large earthquakes may be detected by shore based seismic networks, with general location and focal depth determined from multiple recordings at a number of stations. However, as the exploration and production of offshore resources moves from several tens to perhaps several hundreds of miles from land, the precision of location, based on shore based information, becomes insufficient for purposes of engineering design of structures. Thus, the last several decades have seen the development of seafloor seismic instrumentation, both wholly self-contained and systems which transmit information to the sea surface through wire cables.

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