Natural Hazards

Natural Hazards - Living in Harms Way People live near...

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Living in Harm’s Way People live near volcanoes, in floodplains, on faults, on hillsides. Why?
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Living in Harm’s Way People live near volcanoes, in floodplains, on faults, on hillsides. Why? Agricultural purposes Transportation/shipping corridors Aesthetics Recreation Valleys commonly located on/adjacent to fault lines Poor societies: city workers cannot afford to live in cities; forced to live on hillsides
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Living in Harm’s Way People rebuild in areas previously destroyed, even where future disasters are inevitable. Why is this?
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Living in Harm’s Way People rebuild in areas previously destroyed, even where future disasters are inevitable. Why is this? -past disasters are easily forgotten -not aware of risk of future disasters We tend to not think in terms of geologic time: thousands, millions of billions of years.
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Thinking on Geologic Time Scales Everyday geologic processes produce large cumulative effects.
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Hazards vs. Disasters Natural hazard : natural process which poses threat to human life or property. Natural disaster : natural event that causes significant damage to life or property. The impact of a disaster relates to the size/ magnitude of the event and the location of the event -Few people/buildings: little damage
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Impact of Natural Disasters Catastrophes (1970-2005) resulting in >10,000 victims http://www.swissre.com/resources/32309200455c768ea6ecbe80a45d76a0-E_2005n.pdf Haiti: 200,000+
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Megacity: Population >10 million 8 46 between 1950-2015 Voss (2006)
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Lin et al., Science , 2002 A NATURAL HAZARD: The 2001 Kunlun earthquake occurred in a remote mountainous region (Kekexili) in China. With a magnitude of 7.8 it was the most powerful earthquake in China for 5 decades. No casualties were reported, presumably due to the very low population density and the lack of high-rise buildings. This earthquake was associated with the longest surface rupture ever recorded, ~450 km. ( Klinger et al ., BSSA, 2005)
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A NATURAL DISASTER : The Wenchuan earthquake occurred on May 12, 2008 in Sichuan province, China. With a magnitude of 7.9, it killed ~70,000 people and left millions homeless.
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Dramatic increase in cost of natural hazards More people in path of catastrophic events Greater economic losses in developed countries Increasing numbers of deaths in developing countries Economic Impact of Natural Disasters Catastrophes (1970-2005) resulting in >$3b insured loss
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This note was uploaded on 07/20/2011 for the course GEO 107 taught by Professor Stidham during the Spring '08 term at SUNY Stony Brook.

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Natural Hazards - Living in Harms Way People live near...

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