then pushing on earth’s crust forming a large dome. The main hazards associated with this type of volcano is layers of ash that could extend thousands of square kilometers in every direction of the volcano. Also has plenty of hazardous gasses which make this one of the most catastrophic volcanoes in history. Yellowstone’s calderas last erupted around 640 thousand years ago however this is still considered an active volcano and has a possibility to erupt in the future. Although the activity of the volcano since it has started to be monitored by scientists around 30 years ago has remained constant, its hard to tell if it will erupt in the near future. The most interesting feature I found out about this volcano had another eruption that was about 2million years ago and this most recent one covered up most of the evidence of the first. References USGS: Volcano Hazards Program Yellowstone Volcano Observatory. (n.d.). USGS: Volcano Hazards Program Yellowstone Volcano Observatory . Retrieved July 23, 2014, from Fletcher, C. (2014). Physical Geology: The Science of Earth . Hoboken, NJ: John Wiley & Sons, Inc.. Yellowstone Geology. (n.d.). Yellowstone Geology . Retrieved July 23, 2014, from States. National Park Service. (2014, July 16). Volcano Questions & Answers. National Parks Service . Retrieved July 23, 2014, from USGS: Geological Survey Bulletin 1347 (Formation of the Yellowstone Caldera). (n.d.). USGS: Geological Survey Bulletin 1347 (Formation of the Yellowstone Caldera) . Retrieved July 23, 2014, from
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