Flashcards in GHC Ch 1: Natural Disasters and Human Population Deck (47):
What are the two deadliest events?
tropical storms (hurricanes) and earthquakes
Is a greater magnitude disaster more or less likely to happen than a lesser magnitude disaster?
At what rate is the population increasing?
1.2% per year
The maximum population size that can be supported under a given set of environmental conditions.
Common era. Same as AD.
A region of low atmospheric pressure and converging air that rotates counterclockwise in the Northern Hemisphere.
The change from a human population with high birth rates and high death rates to one with low birth rates and low death rates.
The shaking of Earth by seismic waves radiating away from a disturbance, most commonly a fault movement.
Capacity for performing work
An outbreak of desease
Growth in a compound fashion that, given time, leads to incredible numbers.
The ability to produce offspring; the proportion of births to population.
Number of events in a given time interval. For earthquakes, it is the number of cycles of seismic waves that pass in a second; frequency=1/period
great natural disaster
A disaster so overwhelming that outside assistance is needed to handle the rescue and recovery for the region.
A large, tropical cyclonic storm with wind speeds exceeding 119 and 19 km/h; called a typhoon in the Western Pacific Ocean and a cyclone in the Indian Ocean.
Highly contagious virus caused diseases. The word is commonly shortened to flu.
An assessment of the size of an event. Magnitude scales exist for earthquakes, volcanic eruptions, hurricanes, and tornadoes. For earthquakes, different magnitudes are calculated for the same earthquake when different types of seismic waves are used.
Actions taken by humans to minimize the possible effects of a natural hazard.
Death rate; the proportion of deaths to population
An event or process that destroys life and/or property.
A source of danger to life, property, and the environment. The probability that a dangerous event will occur.
A disease occurring over a wide area and affecting many people.
Amount of time between an event of a given size.
Spending funnels of wind whose rotating windspeeds can exceed 480 km/h.
Giant, long period sea waves caused by oceanic disturbances, such as fault movements, volcanic eruptions, meteorite impacts, and landslides.
A large, tropical cyclonic storm with wind speeds exceeding 119 km/h; called a hurricane in the Western Hemisphere
Submicroscopic agents of many infectious diseases. Viruses replicate inside living cells of organisms.
An opening of the Earth's surface where magma has poured or blown forth, typically creating hills or mountains.
Where in the world are deaths from natural disasters highest?
in a belt through Asia, along the Indian Ocean
Where in the world are insurance losses from natural disasters highest?
in U.S., Europe and Japan
Why has the population suddenly boomed?
Scientific medical revolution and public health care, better shelter, food, and water supplies
What is the current world population?
What is the population doubling time?
How many people were killed by natural disasters in 2011?
What is the number of fatalities proportional to?
What are death totals are often related to?
economic, educational, and political factors
the belief in or practice of disinterested and selfless concern for the well-being of others.
Increase in economic losses over time is result of what?
Increase in human population and urbanization
= risk amplification measures – the risk mitigation measures +/- risk perception factors
Design features, overdesign, structural safeguards, and failsafe design meant to minimize the possible effects of a natural hazard.
Emergency plans, evacuation plans, prediction of impact, and warning processes meant to minimize the possible effects of a natural hazard.
What kind of graph would describe the population growth?
Doubling time formula?
% growth rate/year
Formula for growth rate?
fertility (birth) rate – mortality (death) rate
Human population grows by about how many people per year?
Demographic transition theory
Mortality and fertility rates decline from high to low levels because of economic and social development