Why do some natural hazards become disasters?

• What is the formula for the hazard and risk of a natural disaster?

  Risk = (Hazard X vulnerability)/capacity to cope
• How does a country's level of development affect its vulnerability?

  Less developed countries are more vulnerable to natural hazards, as their buildings, infrastructure, and warning systems are worse
• How does a country's infrastructure affect its vulnerability?

  Less developed countries typically have no building regulations, no transport links to evacuate, and no warning or communication systems
• How does a country's recieving of aid affect its vulnerability?

  Less developed countries have less efficient emergency services, healthcare infrastructure such as hospitals would likely be destroyed, and communication systems would likely be destroyed or damaged
• How does a country's level of wealth affect its vulnerability?

  Less developed countries typically have low incomes per person, so a natural hazard could destroy people's entire wealth
• How does a country's living demographic affect its vulnerability?

  Less developed countries typically have a high population density as a result of rapid urbanisation, meaning houses are built poorly and close together, increasing vulnerability
• How does a country's government affect its vulnerability?

  Less developed countries with corrupt governments will not have adaquate resources, and these governments often will spend little to no money on infrastructure to protect against natural hazards