Relations between some horizontal‐component ground‐motion intensity measures used in practice
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Abstract
Various measures using the two horizontal components of recorded ground motions have been used in a number of studies that derive ground‐motion prediction equations and construct maps of shaking intensity. We update relations between a number of these measures, including those in Boore et al. (2006) and Boore (2010), using the large and carefully constructed global database of ground motions from crustal earthquakes in active tectonic regions developed as part of the Pacific Earthquake Engineering Research Center–Next Generation Attenuation‐West2 project. The ratios from the expanded datasets generally agree to within a few percent of the previously published ratios. We also provide some ratios that were not considered before, some of which will be useful in applications such as constructing ShakeMaps. Finally, we compare two important ratios with those from a large central and eastern North American database and from many records from subduction earthquakes in Japan and Taiwan. In general, the ratios from these regions are within several percent of those from crustal earthquakes in active tectonic regions.
Publication type | Article |
---|---|
Publication Subtype | Journal Article |
Title | Relations between some horizontal‐component ground‐motion intensity measures used in practice |
Series title | Bulletin of the Seismological Society of America |
DOI | 10.1785/0120160250 |
Volume | 107 |
Issue | 1 |
Year Published | 2017 |
Language | English |
Publisher | Seismological Society of America |
Contributing office(s) | Earthquake Science Center |
Description | 10 p. |
First page | 334 |
Last page | 343 |
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