For products of the Pacific Tsunami Warning Center (PTWC - Pacific (except Alaska, British Columbia and Western States) Hawaii, Caribbean (except Puerto Rico, Virgin Is.), Indian Ocean): The highest l [..]

A Tsunami Warning may be issued once there is high degree of confidence that a tsunami threat exists based  upon detection that a tsunami has been generated; or if there is a potential threat (unconfirmed) to NSW within the next 90 minutes. This warning will outline the areas under threat using coastal waters forecast districts and the actions that [..]

For products of the Pacific Tsunami Warning Center (PTWC - Pacific (except Alaska, British Columbia and Western States) Hawaii, Caribbean (except Puerto Rico, Virgin Is.), Indian Ocean): The highest level of tsunami alert. Warnings are issued due to the imminent threat of a tsunami from a large undersea earthquake or following confirmation that a p [..]

The procedure to issue a Warning will be followed when there is evidence proving the existence of a Tsunami (via the West Coast Alaska Tsunami Warning Centre or the Pacific Tsunami Warning Centre) and [..]