- Contains the folder with the simulation velocity time histories estimated using CVM-H. The velocity time series are provided as BBP files that can be open using Notepad, TextEdit, TextMate or other basic text software. Each BBP file contains the three component velocity time histories (North-south, East-west, and Up-down) for a particular station (identified by the NGA-West2 Station Sequence Number) recorded from a specific earthquake event (identified by the NGA-West2 EQID). The metadata information is presented in the top section of the BBP file and it contains the simulation overview information (basin model, minimum shear wave velocity, grid step, and frequency limitations) and the site descriptions (latitude, longitude, distance metrics, averaged shear wave velocity in the top 50 meters, and the basin depths to 1km and 2.5 km iso-surfaces). The time step for the velocities can be determined by taking the difference between the first two time entries. To access the BBP files for a specific station, first open the simulation folder for the basin model (in this case CVM-H Simulations). Once within this folder there will be sub-folders corresponding to each of the 13 simulated earthquake events (the name of the file starts with the EQID followed by the magnitude and other descriptions). Each of these event sub-folders contains a sub-folder called ‘Vel’ that contains the BBP files corresponding to the 420 station locations (each BBP file name starts with the EQID followed by the basin model used and then the station sequence number).

- Contains the folder with the simulation velocity time histories estimated using CVM-S4. The velocity time series are provided as BBP files that can be open using Notepad, TextEdit, TextMate or other basic text software. Each BBP file contains the three component velocity time histories (North-south, East-west, and Up-down) for a particular station (identified by the NGA-West2 Station Sequence Number) recorded from a specific earthquake event (identified by the NGA-West2 EQID). The metadata information is presented in the top section of the BBP file and it contains the simulation overview information (basin model, minimum shear wave velocity, grid step, and frequency limitations) and the site descriptions (latitude, longitude, distance metrics, averaged shear wave velocity in the top 50 meters, and the basin depths to 1km and 2.5 km iso-surfaces). The time step for the velocities can be determined by taking the difference between the first two time entries. To access the BBP files for a specific station, first open the simulation folder for the basin model (in this case CVM-S4 Simulations). Once within this folder there will be sub-folders corresponding to each of the 13 simulated earthquake events (the name of the file starts with the EQID followed by the magnitude and other descriptions). Each of these event sub-folders contains a sub-folder called ‘Vel’ that contains the BBP files corresponding to the 420 station locations (each BBP file name starts with the EQID followed by the basin model used and then the station sequence number).