Tectonics 1.4 Flashcards

You may prefer our related Brainscape-certified flashcards:
1
Q

What is a natural hazard?

A

Natural events; Potential to harm people/property;

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

What is a disaster?

A

Realisation of the natural hazard;

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

How does the UN define a natural hazard?

A

Serious disruption; Functioning of a community/society;

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

What does the UN definition involve in terms of losses and impacts?

A

Widespread -
Human; Material; Economic; Environmental;

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

What does the UN definition say about a community/society’s ability to cope?

A

Exceeds; Using its own resources;

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

What do large insurers define a natural hazard as?

A

Economic losses ^$1.5 Million

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

What does the Degg’s model show?

A

Intersection between a hazardous natural event and a vulnerable population;

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

What does human/economic losses turn a natural hazard into?

A

A disaster;

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

Name some hazardous natural events;

A

Earthquake; Hurricane; Landslide

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

What is the death threshold for a disaster?

A

10 or more;

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

What is the threshold for people affected to be considered a disaster?

A

100;

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

What is the economic losses threshold in order to be considered a disaster?

A

US $1 million;

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

What is unpredictable about hazards?

A

Timing; Magnitude;

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

What is lack of alternatives?

A

People saying lack of options;

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

What are some lack of alternatives?

A

Work; Space; Skills; Knowledge;

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What is meant by dynamic hazards?

A

Change over time affected by human influence/ cost-benefits

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What is meant by ‘Russian roulette reaction’?

A

Fatalism; acceptance of risk fatalism whatever you do

18
Q

Why is relationship between risks, hazards and people complex?

A

Unpredictability;
Lack of alternatives;
Dynamic hazards;
Russian roulette reaction;

19
Q

What is the hazard risk equation?

A

Risk = (hazard x vulnerability)/capacity to cope

20
Q

What rises if the risk of disaster rises?

A

Hazard magnitude;

21
Q

What types of vulnerability rise as risk rises?

A

Poverty;
Lack of preparedness;
Lack of awareness of potential hazards;

22
Q

What do some communities have high levels of, which makes them resilient?

A

Capacity to cope;

23
Q

What increases capacity to cope for communities?

A

Emergency evacuation;
Rescue and relief system;
Hazard-resistant Design;
Land-use zoning;

24
Q

Why is the threshold higher for disaster for some communities?

A

Have Higher Capacity to Cope;

25
Q

What is the resilience of a community in respect to potential hazard events determined by according to the UNISDR?

A

Degree of necessary resources:
Organisation prior and during;

26
Q

What ages groups affect resilience?

A

Children;
Old people;

27
Q

What percentage of those over 60 live in less-developed regions?

A

Around 66%;

28
Q

What percentage of those over 60 live in less-developed regions expected to rise to by 2050?

A

79%

29
Q

What did the UNISDR compile highlights of the trends of ageing populations and the acceleration of risk in a world that is increasingly exposed to a range of hazard types?

A

The Disaster Risk and Age Index

30
Q

What does the PAR Model stand for?

A

The Pressure and Release Model;

31
Q

What does the PAR model suggest?

A

Socio-economic context is important

32
Q

What does the PAR model consist of?

A

Root causes;
Dynamic pressures;
Unsafe conditions;

33
Q

What do root causes, dynamic pressures and unsafe conditions combine with a natural hazard to create?

A

Disaster;

34
Q

What are the three types of impacts of tectonic hazards?

A

Social;
Economic;
Environmental;

35
Q

What do social impacts include?

A

Deaths, injury and wider health impacts including psychological ones

36
Q

What do economic impacts include?

A

The loss of property, businesses, infrastructure and opportunity

37
Q

What do environmental impacts include?

A

Damage or destruction of physical systems, especially ecosystems

38
Q

In the last 30 years, how has the impacts of volcanic eruptions changed?

A

Small and declining impacts, especially death tolls

39
Q

In the last 30 years, how has the impacts of earthquakes changed?

A

Large impacts, as significant earthquakes are common and widespread

40
Q

In the last 30 years, how has the impacts of Tsunamis changed?

A

Very large impacts from a small number of events

41
Q

Generally, what is a low impact in developed countries?

A

Deaths;

42
Q

What is a high impact in developed and emerging economies?

A

Economic losses;