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.
Surface rupture across Los Carneros Ave just northwest of South Ave in Napa County, CA. Photo taken by USGS from California Highway Patrol helicopter on August 24, 2014
Public Domain.
