Weather.com - AP, 10/28/12
This image shows one of the tsunami forecast models, illustrating how the tsunami is pointed at Hawaii. PTWC
Emergency sirens sounded around Hawaii late Saturday warning about an oncoming tsunami, after a powerful earthquake struck off the coast of Canada.
Even as 120,000 people along Hawaii's coast rushed to higher ground, officials downgraded a tsunami warning to an advisory for southern Alaska and British Columbia. They also issued an advisory for areas of northern California and southern Oregon.
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