The empirical prediction of ground motion

abstract Recent additions to the strong-motion data set, primarily from earthquakes in California and Italy, are responsible for a large number of papers examining the prediction of ground-motion measures using regression methods. Peak acceleration is still the most common measure being considered, but increasing attention is being given to peak velocity and spectral amplitudes. Although direct comparisons among the studies are hampered by differing definitions of distance and magnitude, in general the various studies give similar answers for peak acceleration in the region of distance and magnitude space in which most of the data are concentrated. As might be expected, the differences are most pronouced for large magnitudes and distances close to the fault, where data are few. Even so, widely differing assumptions about the form of the regression equation and differences in the composition and weighting of the data set can give similar answers. This was true in recent studies by Campbell (1981b) and Joyner and Boore (1981), where the predicted accelerations for large earthquakes at close distances differed by less than 40 per cent. This seemingly large uncertainty is small compared to the scatter in the data about the regression lines. A Monte Carlo study shows that the question of whether the shape of the attenuation curves is magnitude-dependent cannot be resolved by existing data.

[1]  James N. Brune,et al.  Seismic moment, seismicity, and rate of slip along major fault zones , 1968 .

[2]  H. Bolton Seed,et al.  Accelerations in rock for earthquakes in the western United States , 1973 .

[3]  M. Trifunac,et al.  Preliminary empirical model for scaling Fourier Amplitude Spectra of strong ground acceleration in terms of earthquake magnitude, source-to-station distance, and recording site conditions , 1976, Bulletin of the Seismological Society of America.

[4]  S. D. Werner,et al.  Engineering characteristics of earthquake ground motions , 1976 .

[5]  L. J. O'Brien,et al.  The correlation of peak ground acceleration amplitude with seismic intensity and other physical parameters , 1977, Bulletin of the Seismological Society of America.

[6]  R. Mcguire A simple model for estimating fourier amplitude spectra of horizontal ground acceleration , 1978 .

[7]  H. Kanamori,et al.  A moment magnitude scale , 1979 .

[8]  C. Allin Cornell,et al.  Seismic motion and response prediction alternatives , 1979 .

[9]  John G. Anderson Estimating the seismicity from geological structure for seismic-risk studies , 1979 .

[10]  Peter Molnar,et al.  Earthquake recurrence intervals and plate tectonics , 1979 .

[11]  Empirical analyses of near-source ground motion , 1980 .

[12]  Robin K. McGuire,et al.  RMS accelerations and spectral amplitudes of strong ground motion during the San Fernando, California earthquake , 1980 .

[13]  Robin K. McGuire,et al.  The character of high-frequency strong ground motion , 1981 .

[14]  Regional modification of acceleration attenuation functions , 1981 .

[15]  David M. Boore,et al.  Peak horizontal acceleration and velocity from strong motion records including records from the 1979 Imperial Valley, California, earthquake , 1981 .

[16]  A numerical study of peak ground motion scaling , 1981 .

[17]  C. Chiaruttini,et al.  The correlation of peak ground horizontal acceleration with magnitude, distance, and seismic intensity for Friuli and Ancona, Italy, and the Alpide Belt , 1981 .

[18]  Michael J. Berry,et al.  Attenuation relations for strong seismic ground motion in Canada , 1981 .

[19]  Steven M. Day,et al.  State-of-the-art study concerning near-field earthquake ground motion. Technical report (final) September 19780-October 1980 , 1981 .

[20]  Kenneth W. Campbell,et al.  Near-source attenuation of peak horizontal acceleration , 1981 .

[21]  W. B. Joyner,et al.  The effect of Quaternary alluvium on strong ground motion in the Coyote Lake, California, earthquake of 1979 , 1981 .

[22]  David M. Boore,et al.  Estimation of response-spectral values as functions of magnitude, distance, and site conditions , 1982 .

[23]  David M. Boore,et al.  Analysis of the ground accelerations radiated by the 1980 Livermore Valley earthquakes for directivity and dynamic source characteristics , 1982 .

[24]  D. Boore,et al.  VARIABILITY IN GROUND MOTIONS: ROOT MEAN SQUARE ACCELERATION AND PEAK ACCELERATION FOR THE 1971 SAN FERNANDO, CALIFORNIA, EARTHQUAKE , 1983 .