Save
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account. Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
edit
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Geography unit 1

13. Floods, earthquakes and volcanoes as hazards

QuestionAnswer
Human beings live all over the world even in hazardous areas, since the positive aspects may outweigh the potential hazards.
Extreme events which occur in uninhabited areas of the world are not hazards.
the most common hazard experienced globally and throughout the Caribbean floods
the most sudden hazard in onset, striking with little warning Earthquakes
earthquakes may cause Tsunamis by undersea earthquakes and flood coastal areas
the most dramatic extreme natural event Volcanoes
Hazard risk arises from the intersection of 'natural events' and 'vulnerable population'
what influences the impacts of hazard risks -The magnitude, speed, extent and duration of the natural event -characteristics of the human environment -frequency of the event
how the magnitude of a hazard affects the risks the greater the size of the event; the greater the hazardous effects
how populations in LDCs respond to hazards Populations in LDCs are often unprepared and ill equipped to respond to hazard impacts. Many lives are lost and it is often difficult for communities to return to previous living standard
how populations in MDCs respond to hazards there are greater property losses than loss of life as higher levels of technology and resources allow more people to prepare, evacuate or recover from the effects of hazards
example of how a hazard in MDCs was different from in a LDC flooding of the Mississippi river in the USA has a different level of impact from flooding in the Ganges delta where the population is larger and more vulnerable
The magnitude of an event will influences the impacts of hazard risks directly influence its impact: the greater the size of the event, the greater the hazardous effects.
Generally people are better prepared for hazards if they have experienced an event. Planned land use zoning and evacuation may lessen the impact
speed of onset of floods moderate
speed of onset of earthquakes fast
speed of onset of volcanoes moderate
duration of floods Days/weeks
duration of earthquakes Seconds
during of volcanoes Days
areas of flood Widespread
areas of earthquakes Concentrated
areas of volcanoes Limited
Each natural hazard can have primary, secondary and tertiary effects depending on the characteristic of the population and the level of development
primary effects of hazards are those caused directly by the event - for example, flood waters may sweep away houses, or earthquakes may cause buildings to collapse.
secondary effects of hazards are those in the aftermath of the event, for example, famine, disease or fires after the event is over
tertiary effects of hazards are long term/permanent changes, for example, relocation of settlements
eg of a case study of flooding Guyana
Created by: 868TOYA
Popular Geography sets

 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
Retries:
restart all cards