Tsunami Warning Cancellation 2
Tsunami Warning Cancellation 2 : A warning will be cancelled when damaging waves have stopped coming ashore. A cancellation is issued when sea level readings indicate that the tsunami is below destructive levels and subsiding in most monitored locations. The 29 September 2009 Samoa tsunami starting flooding Pago Pago Harbour 11 minutes after the earthquake, and the second wave, 14 minutes later, overtopped banks, pushing boats onto the roofs off shore-side buildings, American Samoa. Photo courtesy of R. Madsen.Tsunami
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