ABSTRACT

The most northerly state of the USA, Alaska is home to two groups of volcanoes – some 44 along the Aleutian Arc, and another 50+ on the mainland (Wood and Kienle, 1990, pp9–15; Figure CS8.1). These volcanoes are catalogued on the Alaska Volcano Observatory website www.avo.alaska.edu/volcanoes/ and in Wood and Kienle (1990). Many of these volcanoes have been active within the last 10,000 years (and might be expected to erupt again), and around 44 on the Aleutian Arc have been active within historical time (since about 1741; Wood and Kienle, 1990, p10). The volcanoes in Alaska make up well over three-quarters of US volcanoes that have erupted in the last 200 years. The most frequently encountered volcano types are stratovolcanoes and calderas, and the dominant activity is explosive (strombolian, vulcanian, plinian) (Miller et al, 1998; Rosi et al, 2003). the Aleutian Chain Map and Volcano List https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9781849775182/ba7f78b3-1eff-440a-898f-77a2d5685445/content/figcs08_01_C.jpg" xmlns:xlink="https://www.w3.org/1999/xlink"/> Source: Alaska Volcano Observatory, 2009