Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Geography: Edexel A Level > Tectonics 1.5 > Flashcards

Tectonics 1.5 Flashcards

You may prefer our related Brainscape-certified flashcards:
U.S. Geography flashcards World Geography flashcards
1
Q

What is earthquake magnitude measured by?

A

Moment Magnitude Scale

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What does MMS stand for?

A

Moment Magnitude Scale

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

The Moment Magnitude Scale in an updated version of what scale?

A

Richter Scale

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What does the Moment Magnitude Scale measure?

A

Energy released during an earthquake

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What has the energy released during an earthquake related to?

A

Fault line slip and movement

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What type of scale does the Moment Magnitude Scale use?

A

Logarithmic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What does logarithmic scale mean?

A

Magnitude 6 has ten times more ground shaking than magnitude 5

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What does the Mercalli scale measure earthquakes intensity out of?

A

I-XII

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What does the (older) Mercalli Scale measure during an earthquake?

A

Intensity of shaking effects

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What does the Mercalli scale not measure?

A

Energy released

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Why can the Mercalli scale not be used to easily compare earthquakes, due to what it depends on?

A

Building type/quality
Ground conditions

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

The correlation between magnitude and a death toll is a weak one.
What are some serious secondary impacts earthquakes cause?

A

Landslides; Tsunamis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

The correlation between magnitude and a death toll is a weak one.
What type of areas have greater impacts?

A

Urban areas > Rural areas

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

The correlation between magnitude and a death toll is a weak one. Levels of D_________ and P___________.

A

Development and Preparedness

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

The correlation between magnitude and a death toll is a weak one.
Why do isolated places have higher death toll?

A

Rescue and relief takes longer

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

The correlation between magnitude and a death toll is a weak one.
Why would a very high magnitude earthquake not cause any deaths?

A

Unoccupied area

16
Q

What does VEI stand for?

A

Volcanic Explosivity Index

17
Q

What does the Volcanic Explosivity Index measure?

A

Magnitude of a volcanic eruption;

18
Q

What is the range of Volcanic Explosivity Index?

A

0-8

19
Q

Volcanic Explosivity Index combines multiple factors.
This makes is what type of index?

A

Composite

20
Q

What factors does the Volcanic Explosivity Index combine?

A

Eruption height;
Volume of material;
Duration;

21
Q

What material is erupted?

A

Ash; Gas; Tephra;

22
Q

What type of volcanoes are 0-3 in the Volcanic Explosivity Index?

A

Shield volcanoes;

23
Q

What type of rock/lava are 0-3 in the Volcanic Explosivity Index?

A

Basaltic;

24
Q

What type of boundary are 0-3 in the Volcanic Explosivity Index?

A

Constructive plate boundaries; Mid plate hotspots;

25
Q

What type of plate margin are 4-7 in the Volcanic Explosivity Index?

A

Destructive plate margin;

26
Q

Volcanic Explosivity Index 4-7 have High V_______, High G__, High S_____ A_______ M____.

A

High Viscosity, High Gas, High Silica Andesitic Magma

27
Q

Have modern humans ever experienced a Volcanic Explosivity Index 8?

A

No

28
Q

What is a Volcanic Explosivity Index 8 also known as?

A

Super volcano;

29
Q

What would the global impact of a Volcanic Explosivity Index 8 super volcano be?

A

Worldwide cooling of the Earth’s Climate;

30
Q

How long could the worldwide cooling of the Earth’s last?

A

Up to five years;

31
Q

Name two rare caldera eruptions.

A

Yellowstone (Sumatra);
Toba (Indonesia);

32
Q

Is a Volcanic Explosivity Index 1 considered effusive, explosive or colossal?

A

Effusive;

33
Q

Is a Volcanic Explosivity Index 3 considered effusive, explosive or colossal?

A

Explosive

34
Q

Is a Volcanic Explosivity Index 8 considered effusive, explosive or colossal?

A

Colossal;

35
Q

What can be used to compare tectonic events?

A

Hazard Profile;

36
Q

Why are high magnitude, low frequency events create higher risk?

A

Least expected; Unlikely to have occurred in living memory;

37
Q

Why do rapid onset events with low spatial predictability create higher risk?

A

Occur in numerous regions without warning;

38
Q

Why does an event being regional areal extent create higher risk?

A

Affecting large numbers of people in a wide range of locations

Geography: Edexel A Level (40 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions