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Project outline

A Marie Curie Excellence Grant Project. Understanding the Irregularity of seismic cycles: A case study in Turkey. A multidisciplinary investigation. Project outline. Geomorphology. Lake Sediments. Paleoseismic Trenching. Geophysics. My research will mainly involve…. Primary objective:

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Project outline

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  1. A Marie Curie Excellence Grant Project. Understanding the Irregularity of seismic cycles: A case study in Turkey. A multidisciplinary investigation Project outline Geomorphology Lake Sediments Paleoseismic Trenching Geophysics My research will mainly involve…

  2. Primary objective: To further constrain the timing, extent and nature of ground rupturing earthquakes on the North & East Anatolian Faults using geomorphology, geophysics and trenching while working in conjunction with lake sediment coring and analysis to increase the understanding of the nature of seismic cycles on the North & East Anatolian Faults. Secondary objective: To evaluate several methods of measuring the distribution of the physical properties of materials in paleoseismic trenches with the aim of uncovering further stratigraphy therefore potentially providing more detailed constraint on paleoearthquake timing.

  3. Process of investigation This iterative style of investigation is required due to annual weather variation but allows the investigation to be focused as it proceeds in light of the data obtained

  4. Schematic mapfrom: Ross D. Hartleb et al 2006, Bulletin of the Seismological Society of America

  5. Annual slip vectors from GPS measurements GPS horizontal velocities and their 95% confidence ellipses in a Eurasia fixed reference frame for the period 1988-1997 at 189 sites rom: The Proceedings of IWAM04, Mizunami, Japan; Tuncay Taymaz

  6. Recent ruptures 1999b (7.1) 1951 (6.8) North Anatolian Fault 1999a (7.4) 1912 (7.2) 1943 (7.7) 1942 (6.9) 1939 (7.9) 1992 (6.8) 2000 (6.0) 1949 (7.1) 1967 (7.0) 1957 (6.8) Ezinapazari Fault 1944 (7.5) 1966 (7.0) 1964 (6.9) 1953 (7.5) East Anatolian Fault 1971 (6.6) Bilitus Suture ?Adana 1998 (6.3) Dead Sea Fault Cyprian Arc Extent of ruptures are approximate

  7. Fault activityfrom: Sengor et al 2004 • Notice the apparent “knock on” effect observed along the fault during periods of high seismic activity • There are some obvious gaps in the data temporally and spatially • Hopefully this work will further constrain the timing and extent of prehistoric ground rupturing on the NAF • We intend to collect more data on the East Anatolian Fault and compile it with existing data to compare with the Dead Sea Fault and the North Anatolian Fault

  8. Previous Paleoseismic Research North Anatolian Fault 1 2 3 Faulting west of Bolu is not investigated by this study although there is extensive research in this area Faulting in the Karliova Junction area is not investigated by this research due to the complexity at this triple junction 1: At Ilgaz by Sugai et al 1999 2: At Havza by Yoshioka et al 2000 3: At Alayurt by Hartleb et al 2003 4: At Palu to Lake Hazar segment (N end) by Cetin et al 2003 Research conducted inside the Anatolian Plate is not reviewed in this presentation but in general these faults are two (few are one) orders of magnitude less active 4 East Anatolian Fault The Dead Sea Fault and the convergent margins will not be investigated in this research although existing data will be considered in modelling seismic cycles Dead Sea Fault Cyprian Arc

  9. Eurasian Plate Black Sea North Anatolian Fault 4 Sea of Marmara West of Bolu 3 Unpublished work in this area 2 1: Lake Hazar Karliova Junction Various Faulting with in the “Anatolian ova”. generally an order of magnitude lower than the NAF and EAF We intend to avoid these areas due to the complexity of faulting complicating seismic cycles and the paleoseismic record in Lake sediments Karliova Junction area 2: Near Golova Back arc extension in this area 3: Kelkit Valley between Lake Ladik and Erbaa East Anatolian Fault Aegean Sea 1 4: Kizilimak River Valley east of Kargi Anatolian Plate Bilitus Suture Tectonic setting and proposed locations of detailed investigations Arabian Plate Dead Sea Fault Cyprian Arc Mediterranean Sea African Plate

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