These data are an expanded geospatial representation of liquefaction probability for the HayWired earthquake scenario, a magnitude 7.0 earthquake occurring on the Hayward Fault on April 18, 2018, with an epicenter in the city of Oakland, CA. These data supplement the liquefaction probability analysis completed by Jones and others (2017) for the earthquake hazards volume of the HayWired earthquake scenario, which was the product of an analysis that created a detailed liquefaction probability map covering the northern Santa Clara County and western Alameda County areas. This expanded liquefaction probability dataset makes use of FEMA's Hazus-MH 2.1 loss-estimation software and liquefaction susceptibility data by Knudsen and others (2000) to provide liquefaction probabilities for areas in the San Francisco Bay region outside the extent modeled by Jones and others (2017). This vector .SHP dataset was developed and intended for use in GIS applications such as ESRI's ArcGIS software suite. These data support the following publication: Jones, J.L., Wein, A.M., Schweikert, A.E., and Ballanti, L.R., 2019, Lifeline infrastructure and collocation exposure to the HayWired earthquake scenario--A summary of hazards and potential service disruptions, chap. T of Detweiler, S.T., and Wein, A.M., eds., The HayWired earthquake scenario--Societal consequences: U.S. Geological Survey Scientific Investigations Report 2017-5013, https://doi.org/10.3133/sir20175013.