Earthquake ground motion predictive equations for Garhwal Himalaya, India

被引：18

作者：

Harbindu, Ashish ^{[1
]}

Gupta, Sushil ^{[2
]}

Sharma, M. L. ^{[3
]}

机构：

[1] Amer Int Grp, CoE Analyt, Portfolio Modeling, Global Property, Bangalore 560048, Karnataka, India

[2] RMSI Private Ltd, Risk Modeling & Insurance Div, Noida 201301, India

[3] Indian Inst Technol, Dept Earthquake Engn, Roorkee 247667, Uttar Pradesh, India

来源：

SOIL DYNAMICS AND EARTHQUAKE ENGINEERING | 2014年 / 66卷

关键词：

Garhwal Himalaya; Stochastic simulation; Spectral acceleration; Ground motion prediction equations; Attenuation; ROCK SITES; HORIZONTAL ACCELERATION; ATTENUATION RELATIONS; NORTHEASTERN INDIA; STRESS DROP; MODEL; AMPLIFICATION; SIMULATION; PARAMETERS; CALIFORNIA;

D O I：

10.1016/j.soildyn.2014.06.018

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

Predictive equations based on the stochastic approach are developed for earthquake ground motions from Garhwal Himalayan earthquakes of 3.5 <= M-w <= 6.8 at a distance of 10 <= R <= 250 km. The predicted ground motion parameters are response spectral values at frequencies from 0.25 to 20 Hz, and peak ground acceleration (PGA). The ground motion prediction equations (GMPEs) are derived from an empirically based stochastic ground motion model. The GMPEs show a fair agreement with the empirically developed ground motion equations from Himalaya as well as the NGA equation. The proposed relations also reasonably predict the observed ground motion of two major Himalayan earthquakes from Garhwal Himalayan region. For high magnitudes, there is insufficient data to satisfactorily judge the relationship; however it reasonably predicts the 1991 Uttarkashi earthquake (M-w=6.8) and 1999 Chamoli earthquake (M-w=6.4) from Garhwal Himalaya region. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：135 / 148

页数：14

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