Articles | Volume 23, issue 1
https://doi.org/10.5194/nhess-23-139-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/nhess-23-139-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
17 Jan 2023
Research article |
| 17 Jan 2023
| 17 Jan 2023
Classifying marine faults for hazard assessment offshore Israel: a new approach based on fault size and vertical displacement
Geological Survey of Israel, Yesha'yahu Leibowitz 32, Jerusalem, Israel
Institute of Earth Sciences, The Hebrew University of Jerusalem, Jerusalem, Israel
Zohar Gvirtzman
Geological Survey of Israel, Yesha'yahu Leibowitz 32, Jerusalem, Israel
Institute of Earth Sciences, The Hebrew University of Jerusalem, Jerusalem, Israel
Related authors
May Laor, Omri Gadol, Yizhaq Makovsky, Oded Katz, and Zohar Gvirtzman
EGUsphere, https://doi.org/10.5194/egusphere-2025-6041, https://doi.org/10.5194/egusphere-2025-6041, 2026
This preprint is open for discussion and under review for Natural Hazards and Earth System Sciences (NHESS).
Short summary
Short summary
High-resolution sub-seafloor imaging offshore Israel shows marine fault slip rates are far higher than assumed. The record exposes repeated accelerations during glacial to interglacial shifts and reveals significant slip episodes that reshape the seafloor. These events were missed in older surveys, meaning low-resolution methods underestimate hazards to marine infrastructure.
May Laor, Omri Gadol, Yizhaq Makovsky, Oded Katz, and Zohar Gvirtzman
EGUsphere, https://doi.org/10.5194/egusphere-2025-6041, https://doi.org/10.5194/egusphere-2025-6041, 2026
This preprint is open for discussion and under review for Natural Hazards and Earth System Sciences (NHESS).
Short summary
Short summary
High-resolution sub-seafloor imaging offshore Israel shows marine fault slip rates are far higher than assumed. The record exposes repeated accelerations during glacial to interglacial shifts and reveals significant slip episodes that reshape the seafloor. These events were missed in older surveys, meaning low-resolution methods underestimate hazards to marine infrastructure.
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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.
This study aims to provide a practical and relatively fast solution for early-stage planning of...
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