Frequently asked questions
What screening method does this tool use?
The Liquefaction Hazard Engine follows GeoLiquefy's staged commonsense screening method for screening earthquake-induced liquefaction and its consequences, augmented with case-history similarity matching against the Next Generation Liquefaction (NGL) database.
Is GeoLiquefy affiliated with the NGL project?
No. GeoLiquefy LLC is an independent, for-profit company. The engine cites the NGL database as a data source but is not affiliated with, endorsed by, or sponsored by the NGL project or its funding agencies. All NGL data is used in accordance with the NGL project's terms of use.
What units does the engine use?
All inputs and outputs are SI units (meters, kilopascals, megapascals, meters per second). Method thresholds published in American units are converted internally before screening.
Does a screening result replace a site-specific geotechnical investigation?
No. This is a screening tool, not a substitute for site-specific geotechnical engineering judgment. Every generated memo includes a Limitations and Caveats section for this reason.