Week 0, Introduction Flashcards
Natural Disaster
An event that releases large amounts of energy that have been stored over time with catastrophic consequences for life.
Energy is typically built up over a long period of time, hundreds of thousands of years.
Causes significant casualties/disruptions in society.
The cause of a natural disaster is ____, humans can ____ events, but not ____ them.
The cause of a natural disaster is NATURAL, humans can TRIGGER events, but not CAUSE them.
What causes earthquakes, volcanos, and tsunamis?
Earth’s internal energy.
What adds to the Earth’s heat?
Radioactive Material
Residual Heat
Extraterrestrial Impacts
Gravitational Compaction
What generates the hydrologic cycle?
Solar energy
Does the sun heat the earth evenly?
No, the Earth is on an axis, the sun rays must go through the Earth’s atmosphere and end up hitting the north at an unfavourable angle.
The ____ is a nuclear fusion reactor.
The sun is a nuclear fusion reactor.
Potential for dangerous event
Hazard
Likelihood a community will suffer when exposed to natural hazards
Vulnerability
Risk
Vulnerability (hazard)
What does low risk mean?
No significant intersection of people with this hazard.
Natural disasters are when natural hazards
intersect with vulnerable communities. Hazards are beyond human control, vulnerability can generally be controlled.
After a disaster there is
Response
Recovery
Mitigation
Preparedness
RRMP
Response
Immediate actions after disaster
- dispatch medical/police
- should be swift, decisive, coordinated
- goal: get the situation under control
Recovery
Long term actions to rebuild
