Answer:
This website: ready.gov., is the official website of the Department of Homeland Security and its purpose is to offer U.S citizens and residents, as well as anyone inside the U.S, information on different events that might threaten the welfare of people, including natural, and human-generated disasters. Each page, including that of volcanoes, follows the same informational pattern explaining the steps to take, and who to contact, and how to act, in case of an emergency on any of those disasters mentioned by the page.
In the particular case of volcanoes, the site offers all there is to know about how to recognize what a volcano is and how it works, then it also explains how to act, in case of a volcano warning, the steps before, during and after a volcano eruption, and finally, a step-by-step list on how to act during an emergency created by a volcano. At the very end, the page offers a series of contact lists for agencies that can help during such an emergency.