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Yeah, that's weird. The tsunami risk in WA is usually from Indonesia. The NW coast is a recognised tsunami risk zone. Perhaps it bounced off the African coast after travelling from the east.
I remember hearing a story about a tsunami topping the cliffs of Sydney harbour and this happened in the last 40,000 year as the local aboriginies remembered it. The speculation was it could have been caused by an asteroid impact. Is this under doubt?
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