DISTRIBUTION CHARACTERISTICS OF CRUSTAL QP VALUES IN AND AROUND THE EASTERN AREA OF GANSU PROVINCE
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    Abstract:

    In this paper, based on the 291 P-wave data of 83 local earthquakes recorded from the 12 digital stations of the Telemetered Seismic Network of Lanzhou, the crustal Qp values in and around the eastern area of Gansu Province are obtained, ranging from 170 to 1300. by using the spectrum method in frequency domain. The results show that small and moderately strong earthquakes centered in the low Qp region. but the seismicity was keeping the lowest active level in the high Qp region:the large destructive earthquakes (M ≥ 6) occurred on the boundary between the low Qp and high Qp region. Finally, it analyses the Qp-value distribution by using the combination model, and gives a hazard estimation of potential earthquake in this area.

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  • Received:
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  • Online: June 27,2017
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