tsunamis a tsunami is a series of waves in a body of water caused by the displacement of a large...

TSUNAMIS A tsunami is a series of waves in a body of water caused by the displacement of a large volume of water, generally in an ocean or a large lake.

CAUSES

75% caused by earthquakes

8% caused by underwater landslides.

5% caused by volcanic eruption.

MECHANISM

EFFECTS

2004 Indian Ocean tsunami

2004 Indian Ocean tsunami

HIGH RISK MAP

Planning Strategies to Reduce Tsunami Effects

Avoid Inundation AreasSlow Water

Steering Blocking

PREDICTION

Geoscience Australia

PTWC and ATWC

Buoys and tide gauges

Y. Tony Song’s prototype

DART

HOW TO REACT Tsunami Watch: Make preparations and stand by for further updates.

Tsunami Warning – Marine Threat: Get out of the water, secure boats and move away from beaches, marinas, estuaries and rock platforms.

Tsunami Warning – Land Threat: If your area is advised to be under threat, move to higher ground -10 m above sea level or 1k m inland.

Cancellation:Even though the tsunami warning has been cancelled, unusual rips, tides and currents may persist. Emergency services will advise the 'All Clear' when it is safe to return.