A STUDY ON HIGH FREQUENCY DECAY PARAMETER (KAPPA) FROM VARZAGHAN-AHAR DOUBLE EARTHQUAKES, NORTHWESTERN IRAN (MW 6.5 & 6.3)
Publish Year: 1394
نوع سند: مقاله کنفرانسی
زبان: English
View: 228
This Paper With 8 Page And PDF Format Ready To Download
- Certificate
- من نویسنده این مقاله هستم
استخراج به نرم افزارهای پژوهشی:
شناسه ملی سند علمی:
SEE07_322
تاریخ نمایه سازی: 29 آذر 1399
Abstract:
The high frequency decay parameter, kappa and its variations in distance is evaluated using 114 threecomponent strong motion records from two moderate events in NW Iran. We show that in classical method of estimating kappa, the results are very sensitive to the choices of fE and fX and automated procedures for estimating kappa are likely to lead to a biased estimation. For the present database, we found an obvious concavity in dependency of kappa with distance. The kappa values in distance were regressed to a piecewise bilinear shape. Based on this piecewise bilinear shape the zero distance kappa are 0.044 and 0.023 for horizontal and vertical components respectively
Keywords:
Authors
Meghdad SAMAEI
Postdoctoral Researcher, Kanazawa University, Kanazawa, Japan
Masakatsu MIYAJIMA
Professor, Kanazawa University, Kanazawa, Japan