Three dimensional geology and shear-wave velocity models of the Portland, Oregon, metropolitan area

In 2004, DOGAMI began collecting surface and subsurface geologic data for the Portland metropolitan area. The purpose has been to provide high-resolution and high-quality geology data to support urban earthquake hazard assessments and modeling. The final step was to create three-dimensional models of shallow geology and a shear-wave velocity model of the upper 98.4 ft of the greater Portland metropolitan area in 2012 and 2013. The purpose of building these models was to better constrain and delineate geologic hazards associated with surficial geology such as ground-shaking amplification, earthquake-induced liquefaction and lateral spread, and earthquake-induced landslidesThis archived document is maintained by the Oregon State Library as part of the Oregon Documents Depository Program. It is for informational purposes and may not be suitable for legal purposes.OrDocs shipping list 2014-04Title from PDF title pageDVD-ROM includes report in print and onscreen versions in PDF format, data and GIS files in various formatsIncludes bibliographical references (page 20)The NEHRP project that is study is a part of was funded by the USGS NEHRP program through assistance awards 03HQAG0013, 08AG0140, and G11AC20312Mode of access: Internet from the Oregon Government Publications Collection