Earthquakes

Question 1

How do earthquakes occur

Answer 1

They usually occur without warning when pressure is suddenly released. The sudden movement of earth’s tectonic plates that cause them

Question 2

Fault line

Answer 2

Weakness in the crust plate boundary where movement occurs

Question 3

Focus

Answer 3

Point inside the earths crust where the crust breaks and presssure is suddenly released.

Question 4

Epicentre

Answer 4

Point on the surface directly above the focus. Where the earthquake is the strongest and the most damage occurs

Question 5

Short-term effects of earthquakes

Answer 5

Transport disruption, fires, gas pipe explosions,

Question 6

Long-term effects of earthquakes

Answer 6

90% of ships births destroyed, financial loss, roads & railways damaged, people unemployed, electricity and gas networks disrupted

Question 7

Prevention of earthquakes

Answer 7

Pumping water into known fault zones allows them to slip more freely

Question 8

Avoidance

Answer 8

Mapping hazards zones so no one new lives there

Question 9

Disaster management

Answer 9

Stockpiling resources e.g. plan drills/earthquake proof buildings