Acta Geophysica

, Volume 67, Issue 2, pp 491–500 | Cite as

Subdividing the tectonic elements of Aegean and Eastern Mediterranean with gravity and GPS data

  • Muzaffer Kahveci
  • Ayça ÇırmıkEmail author
  • Fikret Doğru
  • Oya Pamukçu
  • Tolga Gönenç
Research Article - Solid Earth Sciences


Western Anatolia has been formed by the motions of the African plate, Arabian plate and Hellenic Subduction zone. The Hellenic Subduction zone, which has high seismicity, is the main tectonic feature of the eastern Mediterranean Sea related to the subduction of the African Plate beneath the Aegean Sea Plate. The Hellenic Subduction zone has a complex lithospheric structure and shows complex differences in the Aegean Sea in terms of continental crust thickness and mantle velocity. In the study area, the directions of Global Positioning System (GPS) velocity vectors which are towards SE change towards S from North of Western Anatolia to Hellenic Subduction zone. It is thought that the factor which controls this mechanism is the shear force or subduction zone located in Aegean Sea. Western Anatolia region, which is located in Western Anatolia Extensional province, includes several morphologically significant N–S trending active normal faults. Besides, the NE–SW and NW–SE trending faults, which their kinematic features change from north to south, are very effective on the tectonic regime of the region. Additionally, for determining the boundaries of these tectonic elements, the Complete Spherical Bouguer (CSB) gravity anomaly of study area was calculated by using World Gravity Map (WGM2012) model. Moreover, in historical and instrumental studies, the high seismicity of the study area is remarkable. It is thought that this case is also related with the mechanism which oriented the GPS velocity vectors to southward. Consequently, the dominant kinematic structure of the region was classified by combining the GPS velocity vectors computed for Izmir and its surroundings bounded by Western Anatolia, Aegean Sea and Eastern Mediterranean and the CSB gravity anomaly. Finally, the results were interpreted together with focal depth distributions of earthquakes and Bouguer gravity data.


GPS Tectonic elements WGM2012 model Gravity Western Anatolia Eastern Mediterranean Aegean Sea 


  1. Ahadov B, Jin S (2017) Present-day kinematics in the Eastern Mediterranean and Caucasus from dense GPS observations. Phys Earth Planet Int 268:54–64CrossRefGoogle Scholar
  2. Ambraseys N, Jackson JA (1990) Seismicity and associated strain of central Greece between 1890 and 1988. Geophys J Int 101(3):663–708CrossRefGoogle Scholar
  3. Armijo R, Meyer B, King G, Rigo A, Papanastassiou D (1996) Quaternary evolution of the Gulf of Corinth rift and its implications for the Late Cenozoic evolution of the Aegean. Geophys JR Astron 126:11–53CrossRefGoogle Scholar
  4. Bohnhoff M, Harjes HP, Meier T (2005) Deformation and stress regimes in the Hellenic subduction zone from focal mechanisms. J Seismo 9(3):341–366CrossRefGoogle Scholar
  5. Bonvalot S, Balmino G, Briais A, Kuhn M, Peyrefitte A, Vales N, Biancale R, Gabalda G, Reinquin F, Sarrailh M (2012) World gravity map. Commission for the Geological Map of the World. Eds. BGI-CGMW-CNES-IRD, ParisGoogle Scholar
  6. Bozkurt E, Sözbilir H (2004) Geology of the Gediz Graben: newfield evidence and its tectonic significance. Geol Mag 141:63–79CrossRefGoogle Scholar
  7. Çırmık A, Pamukçu O (2017) Clarifying the interplate main tectonic elements of Western Anatolia, Turkey by using GNSS velocities and Bouguer gravity anomalies. J Asian Earth Sci 148:294–304CrossRefGoogle Scholar
  8. Çırmık A, Pamukçu O, Gönenç T, Kahveci M, Şalk M, Herring T (2017) Examination of the kinematic structures in Izmir (Western Anatolia) with repeated GPS observations (2009, 2010 and 2011). J African Earth Sci 126:1–12CrossRefGoogle Scholar
  9. DeMets C, Gordon RG, Argus DF, Stein S (1990) Current plate motions. Geophys J Int 101(2):425–478CrossRefGoogle Scholar
  10. Dewey JF (1988) Extensional collapse of orogens. Tectonics 7(6):1123–1139CrossRefGoogle Scholar
  11. Dewey JF, Şengör AMC (1979) Aegean and surrounding regions: complex multi-plate and continuum tectonics in a convergent zone. Geol Soc Am Bull 90(1):89–92CrossRefGoogle Scholar
  12. Dewey JF, Hempton MR, Kidd WSF, Şaroglu F, Şengör AMC (1986) Shortening of continental lithosphere: the neotectonics of eastern Anatolia-a young collision zone. In: Coward MP, Ries AC (eds) Collisional tectonics, vol 19. Geological Society of London, London, pp 3–36Google Scholar
  13. Dogru F, Pamukçu O, Ozsoz I (2017) Application of tilt angle method to the Bouguer gravity data of Western Anatolia. Bull Miner Res Explor 155:45–55CrossRefGoogle Scholar
  14. Dolmaz MN, Hisarlı ZM, Ustaomer T, Orbay N (2005) Curie point depths based on spectrum analysis of aeromagnetic data, West Anatolian extensional province, Turkey. Pure Appl Geophys 162:571–590CrossRefGoogle Scholar
  15. Floyd M, Herring TA (2018) e-mail communications with Massachusetts Institute of Technology (MIT), Department of Earth Atmospheric and Planetary Sciences (EAPS)Google Scholar
  16. Floyd MA, Billiris H, Paradissis D, Veis G, Avallone A, Briole P, McClusky S, Nocquet JM, Palamartchouk K, Parsons B, England PC (2010) A new velocity field for Greece: implications for the kinematics and dynamics of the Aegean. J Geophys Res 115:B10403CrossRefGoogle Scholar
  17. Förste C, Bruinsma SL, Abrikosov O, Lemoine JM, Marty JC, Flechtner F, Balmino G, Barthelmes F, Biancale R (2014) EIGEN-6C4 The latest combined global gravity field model including GOCE data up to degree and order 2190 of GFZ Potsdam and GRGS Toulouse. GFZ Data Serv 12:15. Google Scholar
  18. Gessner K, Gallardo LA, Markwitz V, Ring U, Thomson SN (2013) What caused the denudation of the Menderes Massif: review of crustal evolution, lithosphere structure, and dynamic topography in southwest Turkey. Gondwana Res 24(1):243–274CrossRefGoogle Scholar
  19. Gilardoni M, Reguzzoni M, Sampietro D (2016) GECO: a global gravity model by locally combining GOCE data and EGM2008. Stud Geophys Geod 60:228–247CrossRefGoogle Scholar
  20. Goldsworthy M, Jackson J, Haines J (2002) The continuity of active fault systems in Greece. Geophys J Int 148(3):596–618CrossRefGoogle Scholar
  21. Goudarzi MA, Cocard M, Santerre R (2014) EPC: Matlab software to estimate Euler pole parameters. GPS Solut 18:153–162CrossRefGoogle Scholar
  22. Herring TA, King RW, Floyd MA, McClusky SC (2015) Introduction to GAMIT/GLOBK, Release 10.6. Massachusetts Institute of Technology, CambridgeGoogle Scholar
  23. Hollenstein C, Müller MD, Geiger A, Kahle HG (2008) Crustal motion and deformation in Greece from a decade of GPS measurements, 1993–2003. Tectonophysics 449(1):17–40CrossRefGoogle Scholar
  24. Republic of Turkey Prime Ministry Disaster and Emergency Management Authority (AFAD)
  25. Jackson J, McKenzie DP (1988) The relationship between plate motion and seismic moment tensors, and the rates of active deformation in the Mediterranean and Middle-East. Geophys J R Astron Soc 93:45–73CrossRefGoogle Scholar
  26. Kahle HG, Cocard M, Peter Y, Geiger A, Reilinger R, Barka A, Veis G (2000) GPS derived strain field within the boundary zone of the Eurasian, African, and Arabian plates. J Geophys Res 105(B10):23353–23370CrossRefGoogle Scholar
  27. Kahveci M, Pamukcu O, Cirmik AY, Gonenc T (2013) Using GPS data together with geophysical data: a case study from a seismically active region, Izmir. In: 6th international conference on recent advances in space technologies (RAST). IEEE, pp 231–236Google Scholar
  28. Le Pichon X (1982) Land-locked oceanic basins and continental collision: eastern Mediterranean as a case example. In: Hsü K (ed) Mountain building processes. Academic, New York, pp 201–211Google Scholar
  29. Le Pichon X, Angelier J (1979) The Hellenic arc and trench system: a key to the evolution of eastern Mediterranean area. Tectonophysics 60:1–42CrossRefGoogle Scholar
  30. Makris J (1978) The crust and upper mantle of the Aegean region from deep seismic soundings. Tectonophysics 46:269–284CrossRefGoogle Scholar
  31. Mart Y, Ryan WBF (2003) The tectonics of Cyprus Arc: a model of complex continental collision. Eur Geophys Soc Geophys Res Abstracts 5:02282Google Scholar
  32. McClusky S et al (2000) Global Positioning System constraints on plate kinematics and dynamics in the eastern Mediterranean and Caucasus. J Geophys Res 105(B3):5695–5719CrossRefGoogle Scholar
  33. McKenzie DP (1972) Active tectonics of the Mediterranean region. Geophys J R Astron Soc 55:217–254CrossRefGoogle Scholar
  34. McKenzie DP (1978) Active tectonics of the Alpine-Himalayan belt: the Aegean sea and surrounding regions (tectonic of Aegean region). Geophys J R Astron Soc 55:217–254CrossRefGoogle Scholar
  35. Mercier JL, Sorel D, Vergely P (1989) Extensional tectonic regimes in the Aegean basins during the Cenozoic. Basin Res 2:49–71CrossRefGoogle Scholar
  36. NOAA, N (2006). 2-minute Gridded Global Relief Data (ETOPO2) v2Google Scholar
  37. Nyst M, Thatcher W (2004) New constraints on the active tectonic deformation of the Aegean. J Geophys Res 109:B11406CrossRefGoogle Scholar
  38. Över S, Özden S, Kamacı Z, Yılmaz H, Ünlügenç UC, Pınar A (2016) Upper crust response to geodynamic processes beneath Isparta Angle, SW Turkey: revealed by CMT solutions of earthquakes. Tectonophysics 687:94–104CrossRefGoogle Scholar
  39. Pamukçu O (2016) Geodynamic assessment of Eastern Mediterranean region: a joint gravity and seismic b value approach. Arab J Geosci 9(5):1–13Google Scholar
  40. Pamukçu O, Gönenç T, Çırmık YA, Kahveci M (2015) Investigation of the Sıgacık Bay’s displacement characteristic by using GPS and gravity data in Western Anatolia. J Asian Earth Sci 99:72–84CrossRefGoogle Scholar
  41. Pavlis NK, Holmes SA, Kenyon SC, Factor JK (2008) An earth gravitational model to degree 2160: EGM2008. EGU Gen Assem 10:13–18Google Scholar
  42. Reilinger R et al (2006) GPS constraints on continental deformation in the Africa, Arabia, Eurasia continental collision zone and implications for the dynamics of plate interactions. J Geophys Res 111:B05411CrossRefGoogle Scholar
  43. Reilinger R, McClusky S, Paradissis D, Ergintav S, Vernant P (2010) Geodetic constraints on the tectonic evolution of the Aegean region and strain accumulation along the Hellenic subduction zone. Tectonophysics 488:22–30CrossRefGoogle Scholar
  44. Seyitoğlu G, Scott BC (1991) Late Cenozoic crustal extension and basin formation in west Turkey. Geol Mag 128:155–216CrossRefGoogle Scholar
  45. Smith WHF, Sandwell DT (1997) Global seafloor topography from satellite altimetry and ship depth soundings. Science 277:1957–1962Google Scholar
  46. Sorel D, Mercier JL, Keraudren B, Cushing M (1988) Le role de la traction de la Lithosphere Subducte Dans L’evolution Geodynamique Plio-Pleistocene De l’Arc Egeen: Mouvement Verticaux Alternes Et Variations Du Regime Tectonique. C R Geosci 307:1981–1986Google Scholar
  47. Stein S, Wysession M (2005) An introduction to seismology, earthquakes, and earth structure. Blackwell Publishing, Oxford, pp 290–296Google Scholar
  48. Taymaz T, Jackson J, Westaway R (1990) Earthquake mechanisms in the Hellenic Trench near Crete. Geophys J Int 102(3):695–731CrossRefGoogle Scholar
  49. Tirel C, Gueydan F, Tiberi C, Brun JP (2004) Aegean crustal thickness inferred from gravity inversion, Geodynamical implications. Earth Planet Sci Lett 228(3–4):267–280CrossRefGoogle Scholar
  50. Wessel P, Smith WHF (1998) New, improved version of the generic mapping tools released. Am Geosci Union 79:579CrossRefGoogle Scholar
  51. Yılmaz Y, Genç C, Gürer F, Bozcu M, Yılmaz K, Karacık Z, Altunkaynak Ş, Elmas A (2000) When did the western Anatolian grabens begin to develop? In: Bozkurt E, Winchester JA, Piper JDA (eds) Tectonics and magmatism in Turkey and surrounding area, vol 173. Geological Society of London, London, pp 353–384Google Scholar

Copyright information

© Institute of Geophysics, Polish Academy of Sciences & Polish Academy of Sciences 2019

Authors and Affiliations

  1. 1.Department of Geomatics Engineering, Engineering and Natural Sciences FacultyKonya Technical UniversityKonyaTurkey
  2. 2.Department of Geophysical Engineering, Engineering FacultyDokuz Eylul UniversityBuca, IzmirTurkey
  3. 3.Department of Geophysical Engineering, Oltu Earth Sciences FacultyAtatürk UniversityOltu, ErzurumTurkey

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