An official website of the United States government
Here's how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock () or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Latest Earthquakes | Live WebChat Share Social Media
Explore an interactive USGS map to learn more about areas in California affected by subsidence.
Drought indicators in the Central Valley include declining groundwater levels and associated land subsidence as measured and estimated via multiple techniques.