Source fault of 19 August 1966 Varto earthquake and its' mechanism: New field data, Eastern Turkey

Gurboga S.

JOURNAL OF ASIAN EARTH SCIENCES, cilt.111, ss.792-803, 2015 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 111
  • Basım Tarihi: 2015
  • Doi Numarası: 10.1016/j.jseaes.2015.07.015
  • Dergi Adı: JOURNAL OF ASIAN EARTH SCIENCES
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.792-803
  • Anahtar Kelimeler: 1966 Varto earthquake, Eastern Turkey, Dextral strike-slip motion, Reverse faulting, NORTH ANATOLIAN FAULT, MEDITERRANEAN REGION, VAN REGION, LAKE VAN, TECTONICS, PLATEAU, SYSTEM, MODEL, AREA
  • Akdeniz Üniversitesi Adresli: Evet

Özet

19 August 1966 Varto earthquake (Ms = 6.8; lo = IX) was sourced from Varto Fault Zone (VFZ) that caused 2529 deaths in the Varto region. Just after the occurrence of the event, some researchers have different ideas related to the source fault and mechanism of the earthquake. The Varto Fault Zone is a major NW-SE trending tectonic feature in Eastern Turkey. New geological mapping and description of structures have been used to constrain the geometry, surface deformations and geological history of the fault zone. According to this extensive research, the VFZ consists of left-lateral strike-slip faults with minor amount of reverse component and has been divided into three fault segments Varto, Leylekdag and caycati regarding as geological and morphological characteristics. Hence, palaeostress configurations of the segments are reliable with the regional similar to N-S compression direction. Lastly, the Varto segment northern branch of VFZ has been defined as the source of 19 August 1966 Varto earthquake. (C) 2015 Elsevier Ltd. All rights reserved.