التفاصيل البيبلوغرافية
| العنوان: |
Highly variable coastal deformation in the 2016 MW7.8 Kaikōura earthquake reflects rupture complexity along a transpressional plate boundary. |
| المؤلفون: |
Clark, K.J.1 K.Clark@gns.cri.nz, Nissen, E.K.2, Howarth, J.D.1, Hamling, I.J.1, Mountjoy, J.J.3, Ries, W.F.1, Jones, K.1, Goldstien, S.4, Cochran, U.A.1, Villamor, P.1, Hreinsdóttir, S.1, Litchfield, N.J.1, Mueller, C.1, Berryman, K.R.1, Strong, D.T.1 |
| المصدر: |
Earth & Planetary Science Letters. Sep2017, Vol. 474, p334-344. 11p. |
| مصطلحات موضوعية: |
*COASTAL processes (Physical geology), *DEFORMATIONS (Mechanics), *SATELLITE geodesy, *EARTHQUAKES, *PLATE tectonics, *PALEOSEISMOLOGY |
| مستخلص: |
Coseismic coastal deformation is often used to understand slip on offshore faults in large earthquakes but in the 2016 M W 7.8 Kaikōura earthquake multiple faults ruptured across and sub-parallel to the coastline. Along ∼110 km of coastline, a rich dataset of coastal deformation comprising airborne lidar differencing, field surveying and satellite geodesy reveals highly variable vertical displacements, ranging from −2.5 to 6.5 m. These inform a refined slip model for the Kaikōura earthquake which incorporates changes to the slip on offshore faults and inclusion of an offshore reverse crustal fault that accounts for broad, low-amplitude uplift centered on Kaikōura Peninsula. The exceptional detail afforded by differential lidar and the high variability in coastal deformation combine to form the highest-resolution and most complex record of coseismic coastal deformation yet documented. This should prompt reassessment of coastal paleoseismic records that may not have considered multi-fault ruptures and high complexity deformation fields. [ABSTRACT FROM AUTHOR] |
| قاعدة البيانات: |
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