Earthquakes

Question 1

What are the four types of plate boundaries?

Answer 1

-Destructive
-Constructive
-Conservative
-Collision

Question 2

At what plates do earthquakes occur?

Answer 2

all of them

Question 3

What is an earthquake?

Answer 3

an earthquake is the sudden shaking of the earth caused by a sudden movement of rock beneath the surface.

Question 4

What causes an earthquake?

Answer 4

It is caused by the release of pressure as two tectonic plates move against eachother.

Question 5

What is the FOCUS of an earthquake?

Answer 5

the point in the earths crust where the earthquake originates.

Question 6

What is the EPICENTRE of an earthquake?

Answer 6

the point on the earths surface immediately above the focus.

Question 7

What is meant by seismic waves?

Answer 7

the energy from an earthquake that travels through the earth

Question 8

What are the two types of seismic waves?

Answer 8

• pressure waves
• body waves

Question 9

What measures earthquakes?

Answer 9

The magnitude scale.

Question 10

How do we predict earthquakes? 5

Answer 10

-laser beams
-tilt metres
-pattern of previous earthquakes
-seismometers
-amount of strain measured along a fault line.

Question 11

How are laser beams used to predict earthquakes?

Answer 11

They can detect plate movements along a fault line

Question 12

How are tilt metres used to predict earthquakes?

Answer 12

They can detect plate movements along a fault line

Question 13

How does the pattern of previous earthquakes help to predict future earthquakes?

Answer 13

They are studied. And this can predict when an earthquake MIGHT happen in years to come.

Question 14

How are seismometers used to predict earthquakes?

Answer 14

they pick up vibrations in the earths crust.

Question 15

What is meant by ‘short term aid’?

Answer 15

It is the rapid response to a disaster.

Question 16

what are some of the short short term aids?

What does short term aid do?

Answer 16

-rescuing people
-providing emergency health care
-food and water
-cleaning up after the event

Question 17

What is meant by ‘ long term aid’?

Answer 17

the returning an area back to its original state through rebuilding.

Question 18

name three examples of short term aid

Answer 18

-bottles of water
-tinned food
- emergency health kits
-tents and blankets
ect…

Question 19

Name three examples of long term aid

Answer 19

-new hospitals and schools
-councelling
-education
-building materials
ect…

Question 20

What is the earthquakes case study?

Answer 20

Haiti
(2010 earthquake date)

Question 21

What magnitude was the earthquake in Haiti?

Answer 21

7.3

Question 22

why was there such a high death toll?

Answer 22

lack of preparation for earthquakes

Question 23

where did the Haiti earthquake originate?

Answer 23

it was located 113 miles from the plate boundary between the Carribean plate and the North American plate.

Question 24

Effects on the landscape 4

Answer 24

-250000 homes collapsed
-deep cracks in the rocks
-high temperatures of up to 80 degrees
-days later aftershocks are still strong .

Question 25

Effects on people 4

Answer 25

-high death toll
-civilians looking for bodies
-diseases spread all over the country,
examples:
(gangrene, cholera)
-piles of bodies in the streets

Question 26

Short term aid needed/Provided 4

Answer 26

• people from united nations helped dig for people
  -rescue squads appeared days later
  -lack of resources and not enough to be spread evenly
  -lack of clean water

Question 27

Long term aid needed/provided 4

Answer 27

-new schools, houses and hospitals were rebuilt
-earthquake proof building were installed but were expensive
-education for preparation of earthquakes
- new sewage systems