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Natural Disasters

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... levee topped, flooding New Orleans neighborhoods. Today's Disasters ... WIND GUSTS OF 60 TO 65 MPH HAVE BEEN REPORTED FROM PORTIONS OF NORTHERN ALABAMA. ... – PowerPoint PPT presentation

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Title: Natural Disasters


1
Natural Disasters
  • Tuesday 2005 Aug 30
  • Lecture 3

2
Quiz
  • Identify a demographic group that is moving to
    coastal communities.
  • Name one line of evidence (set of observations)
    that geologists interpret as supporting the
    theory of plate tectonics.

3
Answers
  • Demographic groups moving to coastal communities
    include the Baby Boomers, high-tech workers, and
    service support workers. The Baby Boomers are
    driving the trend.
  • a) Matched terrestrial fossils on continents
    separated by oceans b) patterns of glacial
    motion as shown by striations (grooves) c)
    sea-floor radiometric ages and magnetic striping
    d) apparent polar wander e) visual apparent fit
    of continents

4
Todays Disasters
  • Follow-up
  • European freak weather fires floods kill 34, 25
    in Romania, others in Austria, Bulgaria,
    Switzerland
  • Indonesia Polio Epidemic
  • 225 children infected since March, 2005
  • polio resurfaced in Nigeria in 2003

5
Todays Disasters
  • Katrina as of 500 am CDT, 2005 Aug 30
  • 55 reported dead along Gulf coast, including 30
    in one beach-side apartment in Biloxi, MS
  • 11 dead from Florida landfall
  • More than 1,000,000 without power at least 2
    weeks before fully restored
  • Lake Pontchartrain levee topped, flooding New
    Orleans neighborhoods

6
Todays Disasters
  • Katrina continued
  • New Orleans water main break boil order
  • Oil rig hits bridge
  • Gulf of Mexico oil production cut by 3.1 million
    bbl per day
  • US Highway 90 essentially destroyed near
    Biloxi, Gulfport MS
  • 40,000 homes reported flooded in St. Bernard
    Parish, alone

7
Todays Disasters
  • Katrina continued
  • Mississippi losing 500,000/day tax revenue from
    closed casinos alone
  • Gulf coast oil production cut by 92 (the Gulf
    coast provides 27 of US oil production)
  • Crude oil prices peak at 70.80 bbl
  • Nine oil refineries closed, may take weeks to
    restart (they blow up if operators are not
    careful)

8
Todays Disasters
  • Katrina continued
  • AT 4 AM CDT...0900Z...THE CENTER OF TROPICAL
    STORM KATRINA WAS LOCATED ABOUT 35 MILES
    NORTHEAST OF TUPELO MISSISSIPPI.
  • KATRINA IS MOVING TOWARD THE NORTH-NORTHEAST NEAR
    18 MPH. THIS MOTION SHOULD BRING THE CENTER OF
    KATRINA THROUGH THE TENNESSEE VALLEY TODAY.
  • MAXIMUM SUSTAINED WINDS HAVE DECREASED TO NEAR
    50 MPH...WITH HIGHER GUSTS.
  • TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO
    105 MILES ...165 KM FROM THE CENTER. WIND GUSTS
    OF 60 TO 65 MPH HAVE BEEN REPORTED FROM PORTIONS
    OF NORTHERN ALABAMA.
  • COASTAL STORM SURGE FLOODING ALONG THE NORTHERN
    AND NORTHEASTERN GULF OF MEXICO WILL SLOWLY
    SUBSIDE TODAY.
  • ADDITIONAL RAINFALL ACCUMULATIONS OF 2 TO 4
    INCHES...WITH ISOLATED MAXIMUM AMOUNTS OF 6
    INCHES...WILL ACCOMPANY KATRINA ACROSS THE
    TENNESSEE AND OHIO VALLEYS...THE LOWER GREAT
    LAKES...AND INTO NORTHERN NEW ENGLAND.
  • TORNADOES ARE POSSIBLE TODAY OVER WESTERN SOUTH
    CAROLINA...NORTH CAROLINA...AND VIRGINIA.

9
Katrina Sunday 2005 Aug 28, 415pm CDT
10
Individual Human Impacts
  • Direct Consequences (during the hurricane)
  • drowning
  • injury/death from building collapse flying
    debris
  • injury/death from evacuation accidents
  • stress induced conditions, e.g., heart attack,
    stroke

11
Individual Human Impacts
  • Indirect Consequences (after the hurricane)
  • stress induced conditions, e.g. heart attack
  • exhaustion, dehydration, malnutrition
  • contagious disease, especially, e.g., cholera
  • depression

12
Collective Direct Impacts Economic
  • Property damage/losses
  • homes
  • cars
  • clothes
  • tools
  • food
  • mementos
  • electronics
  • appliances
  • etc., etc., etc.

13
Collective Direct Impacts Economic
  • Property damage/losses
  • Real Estate, oceanfront property

14
Collective Direct Impacts Economic
  • Property damage/losses
  • business
  • buildings,
  • capital equipment,
  • inventory, and
  • records
  • billing/accounts receivable
  • contracts
  • payroll
  • tax

15
Collective Direct Impacts Economic
  • Property damage/losses
  • government infrastructure
  • roads, especially bridges
  • equipment, especially heavy machinery
  • inventory
  • barricades
  • road material (asphalt, aggregate gravel
  • records
  • tax bills
  • municipal assistance

16
Collective Direct Impacts Economic
  • Property damage/losses
  • other collective, especially utilities
  • electric natural gas transmission
    distribution systems
  • water supply
  • waste water treatment
  • wired and cell phone service
  • motor fuel (gasoline) distribution
  • food distribution

17
Indirect Impacts
  • Loss of productivity
  • decline in tax revenue
  • cleanup expenses
  • loss of crops

18
Todays Disasters
  • Katrina, continued
  • Insured loss estimates range from 9 to 26
    billion

19
Who pays for the damage?
20
Secondary Indirect Impacts
  • Economic boom!
  • After Ivan Charlie in Florida
  • rebuild or restore 30,000 homes
  • replace flooded cars
  • replace furniture
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