From Geoscience Australia
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Tsunami Animation - Subduction Inundation Crest

Created 17/10/2025

Updated 17/10/2025

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Depending on whether the first part of a tsunami to reach the shore is a crest or a trough, it may appear as a rapidly rising or falling tide, and in some cases the tsunami may appear as a series of breaking waves. People near the beach may also hear a roaring sound, like an approaching train. In this example, the first crest of our tsunami arrives without warning and inundates the beach and low lying land causing extensive damage. After the first wave, the water will draw back and then the second and third waves will repeat the process at 15 to 20 minute intervals. The first wave may not be the biggest. Reefs and offshore islands may help to protect the coast from the devastating effect of a tsunami.

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Additional Info

Field Value
Title Tsunami Animation - Subduction Inundation Crest
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/9d7b1f36-d5ce-4818-9aa1-81ac5cc2c17d
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 20/04/2018
Geospatial Coverage Australia
Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "Tsunami Animation - Subduction Inundation Crest". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/tsunami-animation-subduction-inundation-crest