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Information Journal Paper

Title

S tructural Interpretation and Precursory Analysis for Ahar-Varzaghan Earthquake Based on Comparative S tudy of Seismic and GPS data

Pages

  75-87

Abstract

 One of the mos t common parameter in seismic s tudies is b-value that is proportional to the relative earthquake-size dis tribution. This parameter is actually the slope of the Gutenberg-Richter law and depends on tectonics and s tress dis tribution in the region. In this s tudy, we inves tigated spatial and temporal changes of b-value and its confirmity with GPS data before and after the Ahar-Varzaghan earthquake in the northwes t seismotectonic region of Iran. The spatial and temporal changes of b-value were mapped using the Zmap software. The map of spatial changes of b-value show doublet events occurred in low b-value area which is probably s tructurally different from adjucent areas. The temporal changes of b-value also represent intense and abrupt decrease of b-value a few days before the earthquake. The time series of the GPS s tations at low b-value area showed dramatic change for a while before the main shocks. Seismic and GPS data, together, could have been considered as earthquake precursors if they had been monitored precisely and continuously. Based on this calculation, the time series of GPS data and field observations, we proposed a res training bend s tructure causing the earthquake. The proposed s tructural model can help to es timation seismic hazard risk of potential future failure area.

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    APA: Copy

    NEDAEI, MAHNAZ, & Fallah Abkenari, Zeinab. (2018). S tructural Interpretation and Precursory Analysis for Ahar-Varzaghan Earthquake Based on Comparative S tudy of Seismic and GPS data. TECTONICS, 2(7 ), 75-87. SID. https://sid.ir/paper/387821/en

    Vancouver: Copy

    NEDAEI MAHNAZ, Fallah Abkenari Zeinab. S tructural Interpretation and Precursory Analysis for Ahar-Varzaghan Earthquake Based on Comparative S tudy of Seismic and GPS data. TECTONICS[Internet]. 2018;2(7 ):75-87. Available from: https://sid.ir/paper/387821/en

    IEEE: Copy

    MAHNAZ NEDAEI, and Zeinab Fallah Abkenari, “S tructural Interpretation and Precursory Analysis for Ahar-Varzaghan Earthquake Based on Comparative S tudy of Seismic and GPS data,” TECTONICS, vol. 2, no. 7 , pp. 75–87, 2018, [Online]. Available: https://sid.ir/paper/387821/en

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