Geography Term 1 Tsunami Test

Tsunami definition

tsunami = series of ocean waves that sends rushes of ocean water

Main causes of Tsunami

earthquakes, volcanic eruption, landslides, displacement in water

How does Tsunami change as approves coast?

Waves slow down, amplitude decrease - longitude increase (+ called shoaling)

Indian Ocean Tsunami Date

26th December 2004

Plate boundaries involved in IOT

India + Burma

Magnitude IOT

9.1 - 9.3 Mw

Main Countries Impacted IOT

Indonesia, Sri Lanka, India, and Thailand

Death Toll IOT

223,000

Social Impacts IOT (x3)

1700 tourists killed - 283,00 killed/disappeared - 2 million people made homeless

Economic Impacts IOT

Global cost Tsunami = $8.71 bn - UK donate £330 million

Environmental Impacts IOT (x2)

Permanently changed coastlines - coral was smashed/torn

Short-term (primary) responses IOT

Evacuation from coast - go 2 higher land (mountains) - label people with stickers - families separated

Long-term (secondary) responses IOT

Flown 2 better hospitals - send first aid/medicine/food 2 affected area - produce list of people found

How tsunamis can be managed 2 reduce impact (min 3)

Tsunami resistant buildings - tsunami warning systems - hazard mapping - planting mangrove forests - community preparedness