Explain the reasons why people live in hazardous areas.

Discuss vulnerability as a function of demographic and socio-economic factors, and of a community’s preparedness and ability to deal with a hazard event when it occurs.

Explain the reasons for some sectors of a population being more vulnerable than others

Describe strategies designed to limit the damage from potential hazard events and disasters.

  • Discussion:

Why do people live in vulnerable areas?

  • What are the benefits?
  • What are the risks?
  • Can people be forced to live somewhere?
  • How do we rationalise risk?
  • How does our perception of hazards change? (Bishop p. 22)
  • Can population growth increase risk?

Haiti: Stop at 8:00

Exercise 1:

Groups 1 and 2: 5 people/group

Create a 5 minute presentation and factsheet with visual aids for one of these earthquake event:

Include all your notes in the earthquake CS document.

  • 3/11/11 Japanese earthquake
  • 12/01/10 Haiti earthquake

—Include:

Population preparedness

  • Population size
  • population density
  • GNI per capita
  • HDI ranking
  • Early warning system in place
  • Government expenditures on hazard prevention and response
  • Building regulations
  • Emergency drills
  • Public education of emergency drills
  • Emergency personnel

The Disaster (Hazard Event)

  • Map with fault zone and epicenter
  • Magnitude
  • Time of day
  • Duration
  • Areal extent
  • Speed of onset
  • Types of waves
  • Types of faults
  • Basic vocabulary

Describe the damage done in terms of:

  • Death toll
  • Injury
  • Insurance claim
  • ground shaking
  • liquefaction
  • Tsunamis
  • Landslides
  • Fires
  • Long term consequences

Group 3: 2 people

  • Using the worldwide earthquake statistics from USGS.gov, calculate the average number of earthquake/year for each of the following categories, in the past three decades:
    • 6 to 6.9
    • 7 to 7.9
    • 8+
Richter scale magnitude 80s avg/year 90s avg/year 00s avg/year
Magnitude 6-6.9 98 133 146
Magnitude 7-7.9 10.1 14.7 13
Magnitude 8+ 0.4 0.6 1.3

 Then, answer the following questions:

  • What conclusion can you gather from the calculations you have completed?
  • Can you predict the number of earthquakes that will happen in a given year? Decade?
  • How could you make more accurate predictions?

2. Find an article describing methods of earthquake prediction associated to 2 of the following. Describe the method and evaluate its efficiency in predicting earthquake events.

  • Seismicity
  • Changes in the ionosphere
  • Electromagnetic indicators
  • Unusual animal behavior

3:  Explain the key principles of the Richter scale

You will present your response with with shared notes at the end of next class. 

Part 2:

On your shared CS notes, comment on the relief provided,

Consider:

  • vulnerability
  • social issues
  • government response
  • international help
  • communication lines
  • infrastructure
  • public education
  • economic expenditures

Watch 2:30 to 7:00 and 9:00 to 16:00

Summing up:

Discuss vulnerability as a function of demographic and socio-economic factors, and of a community’s preparedness and ability to deal with a hazard event when it occurs.

IB style question: Using examples, examine the demographic and socio-economic factors that affect the vulnerability of a community to hazard events. [10] Markscheme