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.
View of Chaitén lava dome looking north, on May 26, 2008. Note simultaneous explosion and effusion of new lava on left-central side of dome. Caldera is about 3 km wide.
