Ground‐motion prediction equations for Arias intensity, cumulative absolute velocity, and peak incremental ground velocity for rock sites in different tectonic …

Z Bullock, S Dashti, A Liel, K Porter… - Bulletin of the …, 2017 - pubs.geoscienceworld.org
Bulletin of the Seismological Society of America, 2017pubs.geoscienceworld.org
This article presents the development of ground‐motion prediction equations for the
maximum rotated (RotD100) horizontal component of five intensity measures: Arias intensity,
cumulative absolute velocity, cumulative absolute velocity above the 5 cm/s 2 threshold
(CAV 5), standardized cumulative absolute velocity (CAV STD), and peak incremental
ground velocity. The equations predict the ground‐motion intensity at outcropping rock sites.
This scope reflects the critical importance of outcropping rock‐motion properties that can be …
Abstract
This article presents the development of ground‐motion prediction equations for the maximum rotated (RotD100) horizontal component of five intensity measures: Arias intensity, cumulative absolute velocity, cumulative absolute velocity above the threshold (), standardized cumulative absolute velocity (), and peak incremental ground velocity. The equations predict the ground‐motion intensity at outcropping rock sites. This scope reflects the critical importance of outcropping rock‐motion properties that can be employed as predictors of certain site‐response quantities or used as input to site‐response and soil–structure interaction analyses. We present equations for the shallow crustal, intraplate, and subduction tectonic environments and between‐ and within‐event standard deviations for each. We also provide supplemental logistic models predicting the probability that and exceed zero in a given earthquake scenario. These equations are valid for magnitudes between 4.0 and 9.0 and source‐to‐site distances up to 400 km, depending on the tectonic environment.
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