Tsunami warning: Where and when could it hit on the west coast of US and Canada?

Tsunami alerts were issued for the entire west coast of North America after a huge 7.9-magnitude earthquake struck around 160 miles off the cost of Alaska. Despite fears coasts as far south as California could be struck by tidal waves, many warnings were soon called off. A tsunami advisory - issued when there is the potential for dangerously strong currents or waves - was still in effect in south Alaska and the Alaska Peninsula.

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