• application of stepp method for assessing the completeness of instrumental and pre-instrumental earthquake data in different seismic provinces of iran

    نویسندگان :
    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1394/02/01
    • تاریخ انتشار در تی پی بین: 1394/02/01
    • تعداد بازدید: 817
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     seismic hazard assessments are effected by large uncertainties derived from instrumental and pre-instrumental data. one of a significant source of uncertainties is the incompleteness of historical seismic records. thus, checking the completeness for different magnitude levels is a paramount step in seismic hazard assessment. in this paper stepp method has been proposed for checking the completeness of seismic catalogues. for this purpose, different de-clustering methods were tested on composite homogenized catalogue of iran and then gardner & knopoff was selected as a final choice for de-clustering the catalogue. using the stepp method, the interval in a magnitude class over which the class is complete was determined. after dividing the seismic data, the magnitude of completeness (mc), defined as the lowest magnitude above which 100% of all events in a given region are detected, is found by maximum curvature method from the complete part of the catalogue.

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