Empirical Near-Source Attenuation Relationships for Horizontal and Vertical Components of Peak Ground Acceleration, Peak Ground Velocity, and Pseudo-Absolute Acceleration Response Spectra

EQE International, inc. Based on extensive user feedback, it has been determined that there are several errors and ambiguities that need to be corrected in the original manuscript (Campbell, 1997). Some of the errors are the result of typographical errors by the publisher, while others are omissions to the original equations that occurred as an oversight. I also offer some additional guidance on the use of the attenuation relations for calculating round motion parameters for normal-fault-ing earthquakes and for sites classified simply as soil or rock. I hope that these corrections and additional guidance will make the attenuation relations more understandable and easier to use. CORRECTIONS Equation (1) should be corrected as follows: when dseis Hs~Is 1