Document Type : Original Research Paper


1 Faculty of Sciences, Geology Department, Scholar of Science and Research Branch, Azad University, Tehran, Iran

2 Research Institute for Earth Science, Geological Survey of Iran, Tehran, Iran

3 Geological Survey of Iran, Tehran, Iran


The North Tehran Fault with a length of about 110 km in North of Tehran and soutern of central Alborz with W-E trend (N25˚E) and dipping (30˚NE) is located in western of Mosha Fault.The branch of Chitgar such as Milad and Vardavard Fault in the form of propagation fault is increased toward south. Previous morphotectonical investigation along the North Tehran Fault show that shear of quaternary sedimentation and pressure mechanism with left-lateral component. Determination of seismic parameter and seismic action that result of this fault movement, need to doing paleoseismological investigation. In this text with using stratigraphy correlation method, estimated of subsidence rate is 0.16 mm/yr and logging with  ratio and ortho photography method, 3-6 event is determined with 6.4-7.4 magnitude and recurrence


Abbassi, M.-A. Farbod,Y., 2009- ''Faulting and folding in quaternary deposite of Tehrant's piedmont (Iran).'' Asian journal earth science 34,522-531.
Alavi, M., 1996- ''Tectonostratigraphic synthesis and structural style of the Alborz mountain system in northern Iran.'' J.Geodynamic. V.21,1-33.
Allen, M., Ghassemi, M. R., Shahrabi, M. & Ghorashi, M., 2003- ''Accommodation of late Cenozoic oblique shortening in the Alborz range, northern Iran.'' Journal of Structural Geology. V.25,659-672.
Axen, G.-J., Lam, P.-J., Grove, M., Stockli, D.-F. and Hassanzadeh, J., 2001- "Exhumation of the west-central Alborz Mountains, Iran, Caspian subcidence, and collision- related tectonics." Geology, V.29, No.6.
Berberian, M. and Yeats, R.-S., 1999- "Patterns of historical earthquake rupture in the Iranian Plateau." Bull. Seismol. Soc. Am., 89, 120-139.
Berberian, M. and Yeats, R.-S., 2001- "Contribution of archeological data to studies of earthquake history in the Iranian Plateau." J. Struct. Geol., 23, 563-584.
Berberian, M., Ghorashi, M., Argangravesh, B., Mohajer Ashjaie, A., 1985- Seismotectonic   and Earthquake fault hazard investigations in the Tehran region (In Persian). Tehran, GSI.
Djamour, Y., 2004- ''Contribution de la Geodesie (GPS et nivellment) a l etude de la deformation tectonique et de l a lea seismique sur la region de Teheran (montagne de l Alborz, Iran).'' Science de la Terre et de l Eau. Montpellier, Luniversite Motpellier II: 180.
Dresch, J.,1961- ''Le Piemontde teheran, In observations de geographie physique en Iran septentrional.'' Centre Docum. Cart. Geogr., Mem. et Docum: 85-101.
Fattahi, M., 2009- ''Dating past earthquake and related sediments by thermoluminescence methods.'' A review, Quaternary International Journal (199): 104-146.
Knill, J. L., Jones, K. S., 1968- "Ground water condition in Greater Tehran." Quart . J. Eng. Geol.1: 181-194.
McCalpin, J. P., 2009- Paleoseismology, New York, Academic Press.
Nazari, H., 2006- ''Analyse de la tectonique recente et active dans I'Alborz  Central et la region de Tehran: Approche morphotectonique et paleoseismologique.'' Science de la terre et de I' eat. Montpellier.
Nazari, H. & Ritz, J.-F., 2008- "Neotectonic in Central Alborz." Geosciences, Special Issue, Vol.17. No.1: 74-93. GSI, Tehran, Iran.
Nazari, H., Ritz, J.-F. & Oghbaee, S., 2006- "New insight to paleogeography  and Structural evolution of the Alborz in Tethyside." Geosciences 60,GSI.
Nazari, H., Ritz, J.-F., Talebian, M., Moosavi, A., 2005- ''Seismotectonic map of  the Central Alborz.'' Scale 1:250000, Tehran, GSI.
Nazari, H., Ritz, J.-F., Shafei, A., Ghassemi, A., Michelot, J.-L., Massault, M., Ghorashi, M., 2009b – ''Morphological and Paleoseismological analysis along the Taleghan fault (Central Alborz).'' Geophys. J. Int., 178, 1028-1041,
Riben, E. H., 1955- The geology of the Tehran plain, Am.J.Sci.
Ritz, J. F., Djamour, Y., Vernant, P., Hatam, Y., Bayer, R., Hinderer, J., Luck, B., Le Moigne, N., Sedighi, M. & Boy, J.P., 2008- ''The present- day deformation in Alborz (Iran) depicted by GPS and gravity observations.'' Paris; SGF conference.
Ritz, J.-F., Nazari, H. , Balescu, S., Lamothe, M. , Salamati, R., Ghassemi, A., Shafei, A., Ghorashi, M. , Saidi, A. , 2012- "Paleoearthquakes of the past 30000 years along the North Tehran Fault, Iran. " Journal of Geophysical Research, Vol 117, doi: 10.1029/2012JB009147, pp. 1-15.
Shahidi, A.-R., 2008- "Tectonic evolution in North of Iran (Alborz and kopet-Dagh) since Mesozoic." Pierre and Marie Curie (Paris6). Paris, France.
Solaymani, S., 2009- ''Evaluation de l'alea seismique pour les villes de Teheran, Tabriz et Zandjan dans le NW de l'Iran Approche morphotectonique et paleoseismologique.'' Science de la terre et de l'eau. Montpellier, Montpellier II: 150.
Stocklin, J., 1974- ''Northern Iran: Alborz Mountain, Mesozoic-Cenozoic Orogenic Belt, data for Orogenic Studies.'' Geol.Soc.London.
Tatar, M., 2001- ''Etude Seismotectonique de deux Zones de collision continental: Le Zagrose Central et I'Alborz (Iran).'' Thesis Phd, Joseph Fourier. Geol. Surv. Iran.
Tchalenko, J. S., Berberian, M., Iranmanesh, H., Bailly, M. & Arsovsky, M., 1974- ''Tectonic framework of the Tehran region in: Materials for the study of seismotectonics of Iran.'' North central Iran, pp.7-46, GSI, Tehran.
Vernant, P., Nilforoushan, F., Chery, J., Bayer, R., Djamour, Y., Masson, F., Nankali, H., Ritz, J. F., Sedighi, M. and Tavakoli, F., 2004b-''Deciphering oblique shortening of central alborz in Iran using geodetic data.'' Earth & Planetary Science Letters, 233,177-185.
Wells, D. L., Coppersmith, K. J., 1994- "Emprical realationships among magnitude, rupture length, rupture area, and surface displacement." Bull, Seismo. Soc.Am, (84) : 974-1002.