Fractal analysis of the aftershocks of the 2013 Gosht-Saravan (M. 7. 8) earthquake, NE Makran

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Partabian A.R .; ANSARI SH.; Jahandideh F.

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Journal: Iranian Journal of Geology Year:2020 | Volume:13 | Issue:52 Page(s): 39-48

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Title

Fractal analysis of the aftershocks of the 2013 Gosht-Saravan (M. 7. 8) earthquake, NE Makran

Author(s)

Partabian A.R . | ANSARI SH. | Jahandideh F. | Issue Writer Certificate

Keywords

MakranQ2

Subduction zoneQ1

AftershockQ2

SeismicityQ2

Fractal DimensionQ1

Abstract

In this paper the Fractal Dimension of the Aftershocks of the 2013 M 7. 8 Gosht-Saravan earthquake and their relationship with the Seismicity parameters (such as the b-value) and also the released seismic energies of the main shocks and the Aftershocks are investigated. The Gosht-Saravan main shock is an intraslab event with normal mechanism. No relationship between the Saravan fault and the main shock is observed. By examining the Fractal Dimension of the Aftershocks and their relationship with the b-value it is confirmed that a linear seismic source (such as a Subduction zone) exists. The slip ratio between the primary and secondary faults can be estimated by the Fractal Dimension. The calculated slip ratio indicates that a low portion of the slips may be related to the near surface fractures which can be verified by the shallow depth Aftershocks. The earthquake occurrence in the intermediate depth, releases seismic energy and migrates to the near surface faults and fractures. The occurrence of Aftershocks both near the hypocenter and at shallow depths can confirm the activity of these faults. The ratio of the total radiated seimic energy of the Aftershocks to the radiated seimic energy of the main shock indicates that a high fraction of the energy related to the main shock and just a small fraction of the energy related to the Aftershocks.

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APA: Copy

Partabian, A.R ., ANSARI, SH., & Jahandideh, F.. (2020). Fractal analysis of the aftershocks of the 2013 Gosht-Saravan (M. 7. 8) earthquake, NE Makran. IRANIAN JOURNAL OF GEOLOGY, 13(52 ), 39-48. SID. https://sid.ir/paper/129317/en

Vancouver: Copy

Partabian A.R ., ANSARI SH., Jahandideh F.. Fractal analysis of the aftershocks of the 2013 Gosht-Saravan (M. 7. 8) earthquake, NE Makran. IRANIAN JOURNAL OF GEOLOGY[Internet]. 2020;13(52 ):39-48. Available from: https://sid.ir/paper/129317/en

IEEE: Copy

A.R . Partabian, SH. ANSARI, and F. Jahandideh, “Fractal analysis of the aftershocks of the 2013 Gosht-Saravan (M. 7. 8) earthquake, NE Makran,” IRANIAN JOURNAL OF GEOLOGY, vol. 13, no. 52 , pp. 39–48, 2020, [Online]. Available: https://sid.ir/paper/129317/en

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