what is the population of the long valley caldera area?
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Short answer: 7093 year round in Mammoth Springs, and approx 35,000 in peak season. \n\nI've been thinking about this question since you posed it. It is hard to answer correctly because the Long Valley Caldera might include every part of a potential volcanic eruption, or it might just include the area the USGS has identified as the South Deadman Creek Dome where there are tree kills from carbon dioxide. Here is the USGS map that shows the past 5000 years of eruptions:\nhttp://pubs.usgs.gov/fs/fs073-97/eruptions.html\n\nUsing this map, the population could be limited by the outline of the Long Valley Caldera as the USGS defines it. That would include Mammoth Lakes. This area's population can easily double or triple if you count tourists and skiers who are not counted in a census. The year 2000 census shows 7093 residents. The visitors bureau in Mammoth estimates peak season occupancy at 35,000 people. \n\nReviewing the area in Google Earth it is fair to say that there are almost no residences outside of Mammoth that are within the immediate area of the caldera. However, a major eruption here could affect several counties, or even several states. Past eruptions have spread ash as far as Kansas. This is the real challenge to answering your question.\n\nIf you want to look into the problem more I would suggest that you download Google Earth software here:  http://earth.google.com/\nIt is a GIS program and does include a layer for census data. Using this census data you could examine various scenarios to see what the population answer is for different areas.
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Currently, it is 8,364 feet.\nBefore the 1980 eruption, it was 9,677 feet.\n\nThe source below is from the U.S. Geological Survey's Cascades Volcano Observatory
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Total population in 2000\n 1,334,544\n\n453 square miles
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From Wikipedia, the free encyclopedia:\n\nThe Yellowstone Caldera, also known as the Yellowstone supervolcano, is a volcanically active region in Yellowstone National Park. It measures 55 kilometers by 72 kilometers. The caldera was discovered with difficulty due to its size. This was done by field work by Bob Christiansen of the USGS in the 1960's and 1970's.
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Your answer is here\n\nhttp://geography.about.com/library/faq/blqzdiameter.htm
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According to www.world-gazetteer.com it is 85,712,221. According to the CIA world factbook it is 89,468,677. So take your pick. They are the two best sources for close estimates on population figures.
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Population: 106,202,903
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Depends on what criteria you set, but the Deccan Traps in India 60- to 65Ma ago was very large. It was classed as a supervolcano much like the one in Yellowstone park at the moment. \nAlthough some people claim that the formation of Yellowstones caldera around 2 million years ago was the largest volcanic eruption ever.
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POPULATION OF THE STATE.
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San Bernardino County is the largest county in the contiguous United States by area, containing more land than nine states.
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300,205,531\n\n\nCheck out this website:\n\nhttp://www.census.gov/population/www/popclockus.html
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Quite a few more than just two --\nAmboy\nLassen\nMalapi Hill\nPisgah\nUbehebe\nCima\nLong Valley\nMono-Inyo\nShasta\n\nhttp://volcano.und.nodak.edu/vwdocs/volc_images/north_america/california/california.html
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Ah... something called a caldera forms.\n\nhttp://vulcan.wr.usgs.gov/Glossary/Caldera/description_caldera.html\nhttp://en.wikipedia.org/wiki/Caldera\nhttp://www.agu.org/pubs/crossref/2003/2003GL018380.shtml\nhttp://hvo.wr.usgs.gov/volcanowatch/1996/96_04_26.html\nhttp://www.yellowstonenationalpark.com/calderas.htm\nhttp://www.mvo.ms/glossary.htm\n\nGosh, if these don't help... I don't know what will.
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That number belongs to William Long in Oxnard, CA
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A population of about 35,658
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This question, as worded, could yield multiple answers.\n\nVesuvius, as an example, has erupted more than 50 times since 79 AD.  This, technically, fits within the parameters of the question.
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Paroreomyza maculata is now known as the Oahu Alauahio\n\nTotal population estimated as fewer than 100 in 1988.\nEstimated as fewer than 10 individuals in 1992\nNone were detected in a 1991 survey. \nLast probable sighting in 1990.\n:-(\n\nSee link for references.