Articles | Volume 23, issue 1
https://doi.org/10.5194/nhess-23-139-2023
https://doi.org/10.5194/nhess-23-139-2023
Research article
 | 
17 Jan 2023
Research article |  | 17 Jan 2023

Classifying marine faults for hazard assessment offshore Israel: a new approach based on fault size and vertical displacement

May Laor and Zohar Gvirtzman

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Cited articles

Allen, H., Jackson, C. A. L., and Fraser, A. J.: Gravity-driven deformation of a youthful saline giant: The interplay between gliding and spreading in the Messinian basins of the Eastern Mediterranean, Petrol. Geosci., 22, 340–356, https://doi.org/10.1144/petgeo2016-034, 2016. 
Almagor, G.: Salt-controlled slumping on the Mediterranean slope of central Israel, Mar. Geophys. Res., 6, 227–243, https://doi.org/10.1007/BF00286527, 1984. 
Almagor, G. and Garfunkel, Z.: Submarine Slumping in Continental Margin of Israel and Northern Sinai, AAPG Bull., 63, 324–340, https://doi.org/10.1306/c1ea5607-16c9-11d7-8645000102c1865d, 1979. 
Almagor, G. and Hall, J. K.: Morphology of the continental margin off NE Sinai and southern Israel, Isr. J. Earth Sci., 27, 128–132, 1979. 
Angell, M. M., Geophysics, A. O. A., Hanson, K., Youngs, R., and Abramson, H.: Probabilistic fault displacement hazard assessment for flowlines and export pipelines, mad dog and Atlantis field developments, deepwater Gulf of Mexico, Proc. Annu. Offshore Technol. Conf., Houston, Texas, USA, 5–8 May 2003, 2579–2603, https://doi.org/10.4043/15402-ms, 2003. 
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Short summary
This study aims to provide a practical and relatively fast solution for early-stage planning of marine infrastructure that must cross a faulted zone. Instead of investing huge efforts in finding whether each specific fault meets a pre-defined criterion of activeness, we map the subsurface and determine the levels of fault hazard based on the amount of displacement and the fault's plane size. This allows for choosing the least problematic infrastructure routes at an early planning stage.
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