6769742
Description
Mind Map by Megan Laura, updated more than 1 year ago
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Created by Megan Laura
over 9 years ago
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Hazard Managment Strategies Used to Respond to Tsunamis
- Modfying the
Event
- In Japan, on the island of Okushiri a number
of engineering methods have been built to
provide hazard resistance from tsunami
waves
- PREVENTION (MITIGATION) - Sluice gates which close over river
mouths to stop waves from travelling up the river, when
tsunamis can move up rivers it spreads the flooding further
inland
- PREVENTION (MITIGATION) - Sluice gates which close over river
mouths to stop waves from travelling up the river, when
tsunamis can move up rivers it spreads the flooding further
inland
- PROTECTION (MITIGATION) - A 9 mile long 12m high sea wall which
encircles the island. In 2015, the Japanese Gov. announced plans to
spend $6.8 billion on a sea wall reaching 12.5m in height (4 storey
building) in some places. The wall will stretch for 250 miles.
However, critics argue that land use planning to stop people building
on the lowest lying areas of the coast is better tsunami
management as it causes less damage to ecosystems and is
cheaper in the long run
- In Japan, on the island of Okushiri a number
of engineering methods have been built to
provide hazard resistance from tsunami
waves
- Modifying Human
Vulnerability
- PREPAREDNESS = PREDICTON - Following the 2004 tsunami event, the
Indian Ocean Tsunami Warning and Mitigation System (IOTWS) was
developed, modelled on the Pacific Warning Centre in Hawaii. It uses sea bed
earthquake detectors, sea level gauges and DART detection buoys linked to
satellites. Thailand has built towers with sirens and loudspeakers that
broadcast tehse tsunami warnings in multiple languages
- PREPAREDNESS = EVACUATION - On the island of
Okushiri in Japan each house in business has an
automated tsunami alarm linked to the ocean detection
system which allows people to evacuate rapidly either to
evacuation platforms or to high land away from the coast
- PREPAREDNESS = ADAPTION - Tsunami evacuation
platforms are provided in the port area of Okushiri Island.
- PREPAREDNESS = PREDICTON - Following the 2004 tsunami event, the
Indian Ocean Tsunami Warning and Mitigation System (IOTWS) was
developed, modelled on the Pacific Warning Centre in Hawaii. It uses sea bed
earthquake detectors, sea level gauges and DART detection buoys linked to
satellites. Thailand has built towers with sirens and loudspeakers that
broadcast tehse tsunami warnings in multiple languages
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