eprintid: 10191318 rev_number: 7 eprint_status: archive userid: 699 dir: disk0/10/19/13/18 datestamp: 2024-04-25 09:48:23 lastmod: 2024-04-25 09:48:23 status_changed: 2024-04-25 09:48:23 type: article metadata_visibility: show sword_depositor: 699 creators_name: Mitchell, S creators_name: Roberts, GP creators_name: Faure Walker, JP creators_name: Iezzi, F creators_name: Sgambato, C creators_name: Robertson, J creators_name: Mildon, ZK creators_name: Ganas, A creators_name: Papanikolaou, ID creators_name: Rugen, EJ title: The relationship between kinematics and fault geometry for surface coseismic ruptures on across-strike faults: New observations of slip vectors and displacements along the Pisia and Skinos faults from the 1981 Eastern Gulf of Corinth, Greece earthquakes ispublished: pub divisions: UCL divisions: B04 divisions: C06 divisions: F57 divisions: ZZ3 note: Copyright © 2024 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). abstract: The relationships between kinematics and fault geometry for the coseismic ruptures from the 24th and February 25, 1981 earthquake sequence in the eastern Gulf of Corinth (Ms 6.7 and 6.4) are analysed. The two earthquakes ruptured faults located across strike rather than along strike as typifies other earthquake sequences. In detail, surface ruptures formed on the sub-parallel Pisia and Skinos Faults, with an 8 km along-strike overlap zone, separated across strike by < 2 km. The largest coseismic offsets occurred in the overlap zone. The 41-year-old ruptures are still well preserved as bedrock fault plane lichen-free stripes and colluvial ruptures, allowing detailed structural mapping at 213 rupture localities. A comparison between our measurements and Jackson et al. (1982) showed no overall consistent signal of post-seismic slip as some of our measurements were greater and some smaller than those recorded in 1981. The ruptures produced a single maximum asymmetric profile (Pisia: maximum throw of 223 cm) and a double maxima profile (Skinos: maximum throw of 109 cm and 130 cm). The shapes of the profiles differed in previous earthquakes on these faults, as evidenced by an older lichen-free stripe, implying non-characteristic earthquakes. Summing the two overlapping throw profiles across-strike reveals a single maximum symmetric bell-like profile. Using the above observations on coseismic offsets, kinematic information, and the geometry of faults, a rupture scenario has been proposed in terms of fault bends and corrugation orientations which suggests that parts of each fault may have ruptured in each earthquake. date: 2024-05 date_type: published publisher: Elsevier BV official_url: https://doi.org/10.1016/j.jsg.2024.105117 oa_status: green full_text_type: pub language: eng primo: open primo_central: open_green verified: verified_manual elements_id: 2268564 doi: 10.1016/j.jsg.2024.105117 lyricists_name: Sgambato, Claudia lyricists_name: Roberts, Gerald lyricists_name: Faure Walker, Joanna lyricists_id: CSGAM93 lyricists_id: GPROB04 lyricists_id: JPFAU41 actors_name: Flynn, Bernadette actors_id: BFFLY94 actors_role: owner full_text_status: public publication: Journal of Structural Geology volume: 182 article_number: 105117 issn: 0191-8141 citation: Mitchell, S; Roberts, GP; Faure Walker, JP; Iezzi, F; Sgambato, C; Robertson, J; Mildon, ZK; ... Rugen, EJ; + view all <#> Mitchell, S; Roberts, GP; Faure Walker, JP; Iezzi, F; Sgambato, C; Robertson, J; Mildon, ZK; Ganas, A; Papanikolaou, ID; Rugen, EJ; - view fewer <#> (2024) The relationship between kinematics and fault geometry for surface coseismic ruptures on across-strike faults: New observations of slip vectors and displacements along the Pisia and Skinos faults from the 1981 Eastern Gulf of Corinth, Greece earthquakes. Journal of Structural Geology , 182 , Article 105117. 10.1016/j.jsg.2024.105117 <https://doi.org/10.1016/j.jsg.2024.105117>. Green open access document_url: https://discovery.ucl.ac.uk/id/eprint/10191318/1/1-s2.0-S0191814124000695-main.pdf