Equations for the estimation of strong ground motions from shallow crustal earthquakes using data from Europe and the middle east: Horizontal peak ground acceleration and spectral acceleration

被引：404

作者：

Ambraseys N.N. ^{[3
]}

Douglas J. ^{[1
,3
]}

Sarma S.K. ^{[3
]}

Smit P.M. ^{[2
]}

机构：

[1] ARN/RIS, BRGM, 45060 Orléans Cedex 2

[2] National Emergency Operations Centre

[3] Dept. of Civ. and Environ. Eng., Imperial College London, South Kensington Campus

来源：

Bulletin of Earthquake Engineering | 2005年 / 3卷 / 1期

基金：

英国工程与自然科学研究理事会;

关键词：

Attenuation relations; Europe; Middle East; Strong ground motion estimation;

D O I：

10.1007/s10518-005-0183-0

中图分类号：

学科分类号：

摘要：

This article presents equations for the estimation of horizontal strong ground motions caused by shallow crustal earthquakes with magnitudes M w ≥ 5 and distance to the surface projection of the fault less than 100km. These equations were derived by weighted regression analysis, used to remove observed magnitude-dependent variance, on a set of 595 strong-motion records recorded in Europe and the Middle East. Coefficients are included to model the effect of local site effects and faulting mechanism on the observed ground motions. The equations include coefficients to model the observed magnitude-dependent decay rate. The main findings of this study are that: short-period ground motions from small and moderate magnitude earthquakes decay faster than the commonly assumed 1/r, the average effect of differing faulting mechanisms is not large and corresponds to factors between 0.8 (normal and odd) and 1.3 (thrust) with respect to strike-slip motions and that the average long-period amplification caused by soft soil deposits is about 2.6 over those on rock sites. Disappointingly the standard deviations associated with the derived equations are not significantly lower than those found in previous studies. © Springer 2005.

引用

页码：1 / 53

页数：52

共 61 条

[1] Abrahamson N.A., Litehiser J.J., Attenuation of vertical peak acceleration, Bulletin of the Seismological Society of America, 79, 3, pp. 549-580, (1989)
[2] Abrahamson N.A., Silva W.J., Empirical response spectral attenuation relations for shallow crustal earthquakes, Seismological Research Letters, 68, 1, pp. 94-127, (1997)
[3] Ambraseys N., Smit P., Berardi R., Rinaldis D., Cotton F., Berge C., Dissemination of European Strong-motion Data, (2000)
[4] Ambraseys N., Smit P., Sigbjornsson R., Suhadolc P., Margaris B., Internet-site for European Strong-motion Data, (2002)
[5] Ambraseys N.N., Bommer J.J., The attenuation of ground accelerations in Europe, Earthquake Engineering and Structural Dynamics, 20, 12, pp. 1179-1202, (1991)
[6] Ambraseys N.N., Douglas J., Near-field horizontal and vertical earthquake ground motions, Soil Dynamics and Earthquake Engineering, 23, 1, pp. 1-18, (2003)
[7] Ambraseys N.N., Simpson K.A., Prediction of vertical response spectra in Europe, Earthquake Engineering and Structural Dynamics, 25, 4, pp. 401-412, (1996)
[8] Ambraseys N.N., Bommer J.J., Sarma S.K., A Review of Seismic Ground Motions for UK Design, (1992)
[9] Ambraseys N.N., Simpson K.A., Bommer J.J., Prediction of horizontal response spectra in Europe, Earthquake Engineering and Structural Dynamics, 25, 4, pp. 371-400, (1996)
[10] Ambraseys N.N., Douglas J., Sigbjornsson R., Berge-Thierry C., Suhadolc P., Costa G., Smit P.M., Dissemination of European Strong-Motion Data, Vol. 2 Using Strong-motion Datascape Navigator, 2, (2004)

← 1 2 3 4 5 6 7 →