Earthquakes(hazards)

Question 1

Define an earthquake

Answer 1

An earthquake is the sudden shaking of the Earth’s surface caused by the release of energy from the Earth’s crust, usually due to tectonic movements or fault activity.

Question 2

What are the primary effects of an earthquake

Answer 2

Ground shaking

Ground rupture

Question 3

What are the secondary effects of earthquakes

Answer 3

Soil liquefaction- soil releases liquid, or ground behaves like a liquid

Tsunamis

Landslides and avalanches

Tsunamis

Fires

Effects on people the built environment

Question 4

What are the enviromental impacts of earthquakes

Answer 4

Hazards e,g tsunamis, landslides, avanalches

Disrupt migration patterns

Water pollution

Loss of habitat

Increase so2 and co2 within the atmosphere

Loss of diversity amongst animals

Question 5

What are the social impacts of earthquakes ?

Answer 5

Deaths
Loss of income and jobs
Lack access to basic necessities

Property damage
Migration

Spread of disease

Question 6

What are the economic impacts of earthquakes ?

Answer 6

Companies suffer, loss of jobs

Supply chains impacted

Cost of rebuilding

Direct cost of rescuing people

Aid from countries abroad
Political impacts

Relocation of people out of country

Question 8

Define epicentre

Answer 8

Is the point on the earths surface directly above the focus of an earthquake, Where the shaking is usually strongest

Question 9

Define focus

Answer 9

Is the point inside the earths crust where an earthquake originates, where stress is released as seismic energy