NGA-West 2 Equations for predicting PGA, PGV, and 5%-Damped PSA for shallow crustal earthquakes

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Resource Abstract:
We provide ground-motion prediction equations for computing medians and standard deviations of average horizontal component intensity measures (IMs) for shallow crustal earthquakes in active tectonic regions. The equations were derived from a global database with M 3.0 7.9 events. We derived equations for the primary M- and distance-dependence of the IMs after fixing the V <sub>S30</sub>-based nonlinear site term from a parallel NGA-West 2 study. We then evaluated additional effects using mixed effects residuals analysis, which revealed no trends with source depth over the M range of interest, indistinct Class 1 and 2 event IMs, and basin depth effects that increase and decrease long-period IMs for depths larger and smaller, respectively, than means from regional V <sub>S30</sub>-depth relations. Our aleatory variability model captures decreasing between-event variability with M, as well as within-event variability that increases or decreases with M depending on period, increases with distance, and decreases for soft sites.
Citation
Title NGA-West 2 Equations for predicting PGA, PGV, and 5%-Damped PSA for shallow crustal earthquakes
Publication Date  Date   2013
Topic Category:  geoscientificInformation
Keywords:
Theme keywords (theme):
Earthquake
thesaurus name >
Title Process > Geologic Processes
publication  Date   2017-01-16
other Citation Details  Cinergi keyword enhanced at Mon Jan 16 12:47:13 UTC 2017
Theme keywords (theme):
Averaging
Analysis
thesaurus name >
Title Method > Information Processing
publication  Date   2017-01-16
other Citation Details  Cinergi keyword enhanced at Mon Jan 16 12:47:13 UTC 2017
Theme keywords (theme):
Distance
thesaurus name >
Title Property > Measure
publication  Date   2017-01-16
other Citation Details  Cinergi keyword enhanced at Mon Jan 16 12:47:13 UTC 2017
Theme keywords (theme):
CLASS
thesaurus name >
Title Equipment > Instrument
publication  Date   2017-01-16
other Citation Details  Cinergi keyword enhanced at Mon Jan 16 12:47:13 UTC 2017
Resource language:  eng
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Metadata data stamp:  2014-09-30T09:20:40Z
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none
Metadata contact - author
organisation Name  Boore, David M.
Contact information
Metadata contact - author
organisation Name  Stewart, Jon P.
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Metadata contact - author
organisation Name  Seyhan, Emel
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Metadata contact - author
organisation Name  Atkinson, Gail M.
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Metadata contact - publisher
organisation Name  Earthquake Engineering Research Institute
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Metadata scope code  dataset
Metadata language  eng USA
Metadata character set encoding:   utf8
Metadata standard for this record:  ISO19115
standard version:  1.0
Metadata record identifier:  52cd21fde4b0c3f95143ecfe
URI for dataset described: > https://www.sciencebase.gov/catalog/item/52cd21fde4b0c3f95143ecfe

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