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Liquefaction potential index calculations at cone penetration test sites in California

This data release provides tabulated liquefaction potential index (LPI) values calculated for a standard set of magnitudes (M), peak ground accelerations (PGA), and groundwater depths (GWD), as described in detail in Engler and others (2025). We use these data to rapidly interpolate LPI values for any M-PGA-GWD combination. The LPI results are computed at cone penetration test (CPT) sites in the San Francisco Bay Area (Holzer and others, 2010). Additionally, the CPT sites are classified using surface geology maps (Wentworth and others, 2023; Wills and others, 2015; Witter and others, 2006).

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Author(s) Davis T Engler orcid, Eric M Thompson orcid, Brett W Maurer orcid, Geyin Mertcan orcid, Paula M Burgi orcid, Kate E Allstadt orcid, Kishor Jaiswal orcid
Publication Date 2025-08-08
Beginning Date of Data 2025-07-07
Ending Date of Data 2025-07-07
Data Contact
DOI https://doi.org/10.5066/P13KGJQV
Citation Engler, D.T., Thompson, E.M., Maurer, B.W., Mertcan, G., Burgi, P.M., Allstadt, K.E., and Jaiswal, K., 2025, Liquefaction potential index calculations at cone penetration test sites in California: U.S. Geological Survey data release, https://doi.org/10.5066/P13KGJQV.
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Metadata Date 2025-08-08
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Citations of these data No citations of these data are known at this time.
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License http://www.usa.gov/publicdomain/label/1.0/
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Harvest Source: ScienceBase
Harvest Date: 2025-09-04T05:04:25.009Z