Hazard Impacts

Question 1

define primary impacts

Answer 1

impacts from the hazard directly

Question 2

define secondary impacts

Answer 2

impacts triggered from a hazard, tsunamis

Question 3

define temporal

Answer 3

the amount of time the hazard lasts over

Question 4

define geospatial

Answer 4

the scale and area that is effected by a hazard

Question 5

what are the 5 types of volcanic hazard

Answer 5

lava flow
pyroclastic flow
lahars
limnic eruptions
tephra fallout

Question 6

what are the social impacts of the five volcanic hazards

Answer 6

lava flow - death by burning and fires
pyroclastic flow - death by cremation
lahars - death by drowning
limnic eruption- death by suffocation
tephra - death by impact and injury

Question 7

what are the economic impacts of the five volcanic hazards

Answer 7

lava flow - destroy property and crops
pyroclastic flow - destroy and cover large amounts of land
lahars - expensive to revert flood damage
limnic eruption- death by suffocation causes a loss of income
tephra - destruction

Question 8

why are deadly limnic eruptions so rare

Answer 8

they require extremely specific requirements and therefore if people get effected by one there is a very low chance

Question 9

case study of a limnic eruption

Answer 9

Lake Nyos:
1700 dead
gases like CO2 came down the volcano into the town.

Question 10

name of tsunami case study

Answer 10

fukishima

Question 11

case study on liquifaction

Answer 11

christchurch, new zealand:
- water is raised through the soft sedimentary rock by the siezemic energy
- destroyed many buildings and infrastructure

Question 12

4 Ways an earthquake is hazardous

Answer 12

building collapse
landslides
fire
liquifaction