  A 3000-year Record of Surface Rupturing Earthquakes at Gunalan; Variable Rupture Lengths on 1939 Erzincan Earthquake Rupture Segment of the North Anatolian Fault, Turkey; Hubert, Aurelia  ; et alin Annals of Geophysics = Annali di Geofisica (2012) The North Anatolian Fault is a ~1200 km long right-lateral strike-slip fault that forms the northern boundary of the Anatolian plate. A damaging sequence of earthquakes ruptured almost the entire fault in ... [more ▼] The North Anatolian Fault is a ~1200 km long right-lateral strike-slip fault that forms the northern boundary of the Anatolian plate. A damaging sequence of earthquakes ruptured almost the entire fault in the twentieth century. This study adds to the growing number of paleoseismic investigations on the 350 km long 1939 Erzincan earthquake rupture segment, which is toward the eastern end of the North Anatolian Fault in Turkey. Using three paleoseismic trenches located along about 2km of the principal fault strand, this study determines the timing of five earthquakes prior to the 1939 earthquake. The first three earthquakes are correlated to historical earthquakes in A.D. 1668, 1254, 499 and two further events were identified at 881 – 673 B.C. and 1406 – 1291 B.C. (2σ age ranges). By comparing the earthquake timing determined in this study to the results of other paleoseismic investigations on the 1939 rupture segment, it becomes clear that this historical rupture segment does not always rupture in unison. This analysis indicates that the A.D. 499 earthquake was the last time the 1939 rupture segment ruptured in unison; although partial ruptures of the 1939 rupture segment occur more frequently and also produce large magnitude earthquakes (> Mw 7). [less ▲] Detailed reference viewed: 22 (1 ULg)An integrated history of paleoearthquakes along the North Anatolian Fault (Turkey)Hubert, Aurelia ; ; in Abstracts with Programs - Geological Society of America (2010, October) Detailed reference viewed: 9 (1 ULg)The 2500 yr long paleoseismological record of the Hazar Lake, East Anatolian fault, TurkeyHubert, Aurelia ; ; et alConference (2010, September) Detailed reference viewed: 14 (1 ULg)Structure and evolution of Lake Hazar pull-apart Basin along the East Anatolian Fault; Hubert, Aurelia ; et alin Basin Research (2010) The Hazar Basin is a 25 km-long, 7 km-wide and 216 m-deep depression located on the central section of the East Anatolian Fault zone (eastern Turkey) and predominantly overlain by Lake Hazar. This basin ... [more ▼] The Hazar Basin is a 25 km-long, 7 km-wide and 216 m-deep depression located on the central section of the East Anatolian Fault zone (eastern Turkey) and predominantly overlain by Lake Hazar. This basin has been described previously as a pull-apart basin because of its rhombic shape and an apparent fault step-over between the main fault traces situated at the southwestern and northeastern ends of the lake. However, detailed structural investigation beneath Lake Hazar has not been undertaken previously to verify this interpretation. Geophysical and sedimentological data from Lake Hazar were collected during field campaigns in 2006 and 2007. The analysis of this data reveals that the main strand of the East Anatolian Fault (the Master Fault) is continuous across the Hazar Basin, connecting the two segments previously assumed to be the sidewall faults of a pull-apart structure. In the northeastern part of the lake, an asymmetrical subsiding sub-basin, bounded by two major faults, is cross-cut by the Master Fault, which forms a releasing bend within the lake. Comparison of the structure revealed by this study with analogue models produced for transtensional step-overs suggests that the Hazar Basin structure represents a highly evolved pull-apart basin, to the extent that the previous asperity has been bypassed by a linking fault. The absence of a step-over structure at the Hazar Basin means that no significant segmentation boundary is recognised on the East Anatolian Fault between Palu and Sincik. Therefore, this fault segment is capable of causing larger earthquakes than recognised previously. [less ▲] Detailed reference viewed: 67 (5 ULg)Seismic behavior of the 1943 segment of the North Anatolian FaultHubert, Aurelia ; ; et alin TMMOB Jeoloji Mühendisleri Odasi (Ed.) 62nd Geological Kurultai of Turkey. Abstracts Book: 13-17 April, 2009 (2009, April) Detailed reference viewed: 5 (1 ULg)Structure of the East Anatolian Fault at the Hazar Basin, eastern Turkey; Hubert, Aurelia ; et alin Cahiers du Centre Européen de Géodynamique et de Séismologie (2009), 28 Detailed reference viewed: 12 (1 ULg)Paleolimnological and Sedimentological Traces of the 1943 (Ms=7.3) Earthquake in the sediments of Ladik Lake, Samsun/Turkey; ; Fagel, Nathalie et alPoster (2009) Detailed reference viewed: 9 (1 ULg)Lake Hazar: a potential high-resolution 150 ka record of climate and tectonic interactions in Anatolia.; ; et al in EOS : Transactions, American Geophysical Union (2008, December), 89(53)(Fall Meet. Suppl.), 21-1942 Detailed reference viewed: 6 (1 ULg)Traces of the last earthquake sequence (1939-1944) along NAF from lacustrine sediments; ; Hubert, Aurelia et alin Geophysical Research Abstracts (2008, April), 10 Detailed reference viewed: 6 (0 ULg)A 3000 year chronology of North Anatolian Fault ruptures, utilizing magnetic susceptibility trench logging, near Lake Ladik, Turkey; ; Hubert, Aurelia et alin Geophysical Research Abstracts (2008, April), 10 Detailed reference viewed: 7 (0 ULg) Traces of the last earthquake sequence (1939-1944) along NAF from lacustrine sediments.; ; et al Poster (2008) Detailed reference viewed: 4 (0 ULg)Sedimentological Fingerprints of Recent Earthquakes in Lake Sediments: A Case Study on the North Anatolian Fault (NAF), Turkey; ; et al Poster (2008) Detailed reference viewed: 13 (2 ULg)Development of paleoseismic trench logging and dating techniques: a case study on the Central North Anatolian Fault; ; Hubert, Aurelia et alin Geophysical Research Abstracts (2007, April), 9 Detailed reference viewed: 10 (0 ULg) |
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