Notice

We recently improved the VSPDB database and web interface. Here is a list of modifications:

1. Choi (2024) fixed many data entry errors and added data in Utah.
2. The schema has been updated to better link different types of tests. For example, velocity profiles derived from SCPT data now link the CPT profile and the velocity profile through the tests table.
3. We added an Application Programming Interface (API) so you can access data from any program that can send HTTP requests. See API documentation for details.
4. We added a webpage for each table in the database, including the ability to add query string parameters to customize results. See API documentation for details.
5. We added a schema page that describes the database structure.

We are still working on a few things, including the borings and travel time data. The old database can be found here. If you can't click on the markers on the map, you may need to clear your browser cache (i.e., Ctrl + Shift + R with Developer Tools open).