Journal cover Journal topic
Natural Hazards and Earth System Sciences An interactive open-access journal of the European Geosciences Union
doi:10.5194/nhess-2017-1
© Author(s) 2017. This work is distributed
under the Creative Commons Attribution 3.0 License.
Research article
27 Feb 2017
Review status
This discussion paper is under review for the journal Natural Hazards and Earth System Sciences (NHESS).
A dynamical approach to study the time dependent behavior of the Kuhbanan fault zone (Kerman – Iran)
Mohammadreza Tavakoli and Hosein Amiri Physics Department, Shahid Bahonar University of Kerman, Kerman, Iran
Abstract. In this research a proposed methodology is improved to identify how the stresses increase between two Earthquakes in Kuhbanan fault zone (Iran). Using the Mohr circles of the Earthquake we could calculate the main stress (σ1), hydrostatic stress, normal and shear stresses and the initial and final Coulomb stresses for all individual Earthquakes. For the relation of the whole fault we need the initial and the final Coulomb stress as well as the time during which the stress reaches from initial value to the final Coulomb failure value. The initial Coulomb stress is chosen as the least value, to be 30 megapascal. For the final Coulomb stress we used the average final Coulomb stress of all Earthquakes and for the time between this two initial and final stress we use the average time between Earthquake that is 3377 days. Using the Coulomb stresses at selected times, one can see how the stress increase with time between Earthquakes. The best fit of points of stress versus time is a polynomial relation. The model will help to estimate the stress accumulation with time until the next event, this means one can estimate the approaching time to the next main shock.

Citation: Tavakoli, M. and Amiri, H.: A dynamical approach to study the time dependent behavior of the Kuhbanan fault zone (Kerman – Iran), Nat. Hazards Earth Syst. Sci. Discuss., doi:10.5194/nhess-2017-1, in review, 2017.
Mohammadreza Tavakoli and Hosein Amiri
Mohammadreza Tavakoli and Hosein Amiri

Data sets

Field and teleseismic observations of the 1981 Golbaf-Sirch earthquakes in SE Iran
M. Berberian, J. A. Jackson, M. Ghorashi, and M. H. Kadjar
doi:10.1111/j.1365-246X.1984.tb02223.x
The Dahuiyeh (Zarand) Earthquake of 2005 February 22 in central Iran: reactivation of an intramountain reverse fault
M. Talebian, J. Biggs, M. J. Bolourchi, A. Copley, A. Ghassemi, M. Ghorashi, J. Hollingsworth, J. A. Jackson, E. Nissen, B. Oveisi, B. Parsons, K. Priestley, and A. Saiidi
doi:10.1111/j.1365-246X.2005.02839.x
Mohammadreza Tavakoli and Hosein Amiri

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Short summary
In this research a proposed methodology is improved to identify how the stresses increase between two Earthquakes in a fault zone. Using the Coulomb stresses at selected times, one can see how the stress increase with time between Earthquakes. The best fit of points of stress versus time is a polynomial relation. The model will help to estimate the stress accumulation with time until the next event, this means one can estimate the approaching time to the next main shock.
In this research a proposed methodology is improved to identify how the stresses increase...
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