Hazards in the USA (OCR GCSE Geography B (Geography for Enquiring Minds)): Flashcards
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Two main categories of natural hazards in USA
Two main categories of natural hazards in USA
Weather-related hazards and tectonic hazards
Examples of weather hazards in USA
Examples of weather hazards in USA
Tornadoes, hurricanes, floods, droughts, extreme temps, wildfires
Primary tectonic hazard in USA
Primary tectonic hazard in USA
Earthquakes
Average number of tornadoes per year in USA
Average number of tornadoes per year in USA
1,000 tornadoes
Region of USA most affected by tornadoes
Region of USA most affected by tornadoes
Mid-west region (Tornado Alley)
Why USA has so many tornadoes
Why USA has so many tornadoes
Cold air from Canada meets warm, moist air from Gulf of Mexico
3 key metrics for comparing natural hazards
3 key metrics for comparing natural hazards
Frequency of occurrence, deaths caused, economic costs
Are most frequent hazards always the most deadly?
Are most frequent hazards always the most deadly?
No - frequency doesn't equal severity
Which country experiences the most tornadoes?
Which country experiences the most tornadoes?
USA
States with high tornado activity
States with high tornado activity
Oklahoma, Kansas, Nebraska, Texas