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Flashcards in Natural Hazards Deck (49):
1

What is a climatic hazard?

When's region has certain weather conditions, such as flooding

2

What is a tectonic hazard?

When the earths crust moves e.g. Volcanic eruptions and earthquakes

3

What factor can influence the impacts of a natural hazard?

Human activities

4

What hazard can only occur in specific areas?

Tornadoes

5

Which part of the earth is found above the mantle?

Crust

6

What Is the name given to semi molten rock?

Magma

7

What is the name given to the hot underground currents which move plates around?

Convection currents are underground movement of magma

8

What is the name given to margins were plates move together?

Destructive

9

What is the name given to margins were plates move apart?

Constructive

10

What is the name given to margins were plates move side-by-side?

Conservative

11

Name an arc of islands found above hotspots?

Hawaii

12

Where do volcanoes occur?

At constructive and destructive plate margins

13

What is subduction?

Well oceanic plate is forced continental plate

14

Where is Continental crust found?

Under landmasses in continents

15

What is an earthquake?

Sudden brief period of intense ground shaking

16

At which plate margins to find a earthquakes?

All three plate margins

17

What is the point in the earths crust where the earthquake originates known as?

Focus

18

What is the point on the Earth's surface directly above where the earthquake originates?

Epicentre

19

What piece of equipment measures earthquakes?

Seismometer

20

What is an example of a primary effect?

Deaths and injury

21

What is an example of a short-term response?

Aid from other countries

22

What is earthquake prediction?

Attempts to forecast an earthquake this is very difficult and not very accurate

23

How can buildings be adapted to cope with earthquakes?

Rubber shock absorbers fitted to absorb earth tremors

24

How do people prepare for earthquakes?

Have drills and educate people on what to do in the event of an earthquake

25

Where are volcanoes found?

Along constructive and destructive margins

26

Where do volcanoes cause the most damage?

In poorer countries as they have fewer resources to cope

27

Where is the crater found?

At the top of the volcano

28

Which part of a volcanic eruption can have a global impact?

Ash can have a global impact as it can block sunlight

29

What is a positive effect of a volcanic eruption?

Tourism as tourists visit volcanic areas for the dramatic scenery

30

What is a negative effect of a volcano?

Damaged buildings

31

What is the characteristic of a composite volcano?

Layers of ash and lava

32

What is a characteristic of shield volcano?

Found a long constructive margins

33

Give an example of a shield volcano

Mauna Loa, Hawaii

34

What is an instrument that helps to monitor volcanoes?

Tiltmeter as they measure changes in the landscape

35

What type of pressure system as a tropical storm?

A tropical storm is a very powerful low pressure weather systems

36

What is the central part of the tropical storm known as?

The eye

37

Tropical storms form when water is at what minimum temperature?

27°C

38

When does the tropical storms begin to lose energy?

When the storm reaches land

39

How will climate change have an affect on tropical storms?

Tropical storms will become more intense and powerful and in more areas as the sea is increasing temperature

40

Name a method that can help track and predict tropical storms?

Satellite images

41

Typhoon Haiyan occurred in which area of the world?

South east Asia mainly in the Philippines and Vietnam

42

Give a social impact of typhoon haiyan

1.9 million people were left homeless

43

What type of weather conditions does a depression bring?

Unsettled weather with varied rainfall

44

What type of weather conditions does an anticyclone bring to the UK in the summer?

Settled weather, dry and clear skies

45

What is a relief rainfall?

When warm moist air from the Atlantic ocean rises up over mountains

46

What is convectional rainfall?

It occurs during the summer in the UK, when the Sun heats the land

47

How did the environmental agency help reduce the risk of flooding?

They send out flood warnings which help people prepare

48

Since when has that been a rapid increase in global temperatures?

The global temperatures have dramatically increased since 1950

49

What can be used to measure changing temperatures over time?

Ice core samples as they have trapped air from thousands of years ago