Ch01 6slides pp

Ch01 6slides pp - Natural Disasters & the Human...

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1 the Human Population the Human Population Chapter 1 Chapter 1 GEOL 171 GEOL 171 Earthquakes and Natural Disasters Earthquakes and Natural Disasters Hazard Source of Danger that has the Potential to: • Cause harm –Injury, disease, death • Damage/destroy property • Deteriorate/destroy environment Natural Hazards Number of natural processes that pose continuous risk to humans. • Many are catastrophic • Expanding populations has increased exposure. Natural Disasters Are the result of extreme events of high-energy natural phenomena acting on a restricted area over a short period of time . Natural Hazards - Disasters • Earthquakes • Volcanic activity • Landslides and avalanches (mass movements) • Storms (tornadoes and hurricanes) • Floods •F ires • Heat waves • Meteorite impacts Natural Disasters 2004-2005 More than 280,000 people killed in 2004 Almost 100,000 in 2005 2005 Pakistan earthquake : 88,000 people killed • 3.3 million left homeless; landslides •2 nd wave of deaths from winter storm 2005 Hurricane Katrina : Costliest disaster in US • 2004 Hurricane Ivan was close miss • 2005 Hurricane Katrina was direct hit on Mississippi, engulfed much of Gulf Coast • Failure of Mississippi River and Lake Pontchartrain levees
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2005 Deadliest Natural Disasters Fatalities in Natural Disasters Natural Disaster Types vs. Geographic Area and Fatalities 8 events 22 events 1970-2005 Deadliest Natural Disasters Human Fatalities in Natural Disasters • Biggest killers: hurricanes, earthquakes, floods , tsunami, severe weather, landslides, volcanic eruptions, and tornadoes Most mega-killer disasters occur in densely populated belt through Asia, along Indian Ocean – number of fatalities is proportional to density of population Compare the effects of two Indian Ocean tsunami: – 1883, Krakatoa volcano collapse: 36,000 people killed (world population 1.6 billion) – 2004, Sumatra earthquake: 245,000 people killed (world population 6.4 billion). Economic Losses from Disasters
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This note was uploaded on 04/10/2008 for the course GEOL 171 taught by Professor Tsoflias during the Spring '08 term at Kansas.

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Ch01 6slides pp - Natural Disasters & the Human...

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