This lecture introduces how recorded ground motions can be used to develop empirical ground motion prediction models (called attenuation relationships or ground motion prediction equations). These models can be used to predict the ground motions at a give site due to some scenario earthquake event. The basics of attenuation relationships are reviewed. The Next Generation Attenuation Relationship (NGA) models are briefly introduced and discussed.

View and download a copy of a PEER-produced spreadsheet that calculates the most recent NGA West 2 Attenuation Relationships: https://www.dropbox.com/s/cevfe7co6z38ehw/NGAW2_GMPE_Spreadsheets_v5.6_070514_Protected.xlsm?dl=0