Download or read book Chronology and References of Volcanic Eruptions and Selected Unrest in the United States, 1980- 2008 written by U.S. Department of the Interior and published by Createspace Independent Publishing Platform. This book was released on 2014-02-19 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: The United States ranks as one of the top countries in the world in the number of young, active volcanoes within its borders. The United States, including the Commonwealth of the Northern Mariana Islands, is home to approximately 170 geologically active (age