Preprints
https://doi.org/10.5194/nhess-2017-1
https://doi.org/10.5194/nhess-2017-1

  27 Feb 2017

27 Feb 2017

Review status: this discussion paper is a preprint. It has been under review for the journal Natural Hazards and Earth System Sciences (NHESS). The manuscript was not accepted for further review after discussion.

A dynamical approach to study the time dependent behavior of the Kuhbanan fault zone (Kerman – Iran)

Mohammadreza Tavakoli and Hosein Amiri 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.

Mohammadreza Tavakoli and Hosein Amiri

 
Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Printer-friendly Version - Printer-friendly version Supplement - Supplement
 
Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Printer-friendly Version - Printer-friendly version Supplement - Supplement

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 https://doi.org/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 https://doi.org/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.
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