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saas-y Ground Motions
  • Search the NGA-West2 and NGA-Subduction databases with multiple scenarios simultaneously!
  • Choose from many ground-motion selection, scaling, & modification methods available, including Silvia's Mean-Spectrum Modification and Norm's Spectrum-Resultant Matching!
  • Compute recommended scale factors and spectrum-modification targets!
  • Pay-per-use only -- no annual license fees!! Easy to charge to projects instead of overhead!

Developing a good ground-motion suite requires a few iterations where you start with a wide search and carefully select the optimal individual records. Each iteration takes a token. You can buy the tokens here, or directly on the web site.

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