Page 131 - Volcano and Geothermal Tourism

108 The Americas

Figure CS4.1 The Cascade ‘Volcanic Arc’
Source: Wikimedia Commons, 2009a

various High Cascade mountains such as Hood and explosive eruptions, lava flows, lahars, pyroclastic
Adams make war by throwing fire and stone at surges and flows, volcanic ash plumes, melt-water
each other, and Mt St Helens was described as a from the snowfields on many of the larger ones
beautiful maiden over whom Mts Hood and and acid rain. These volcanoes have produced
Adams feuded (Harris, 2005). more than 100 eruptions in the past 4000 years
where pyroclastic events, lava flows, lahars and
Risk factors landslides have affected areas over 80km from the
The risk factors for tourism associated with the particular volcano. The eruption of Mt St Helens
volcanoes of the Cascades include earthquakes, on 18 May 1980 was just the latest of these. The

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