The tsunami travel-time map has lines and numbers (in hours) on it to indicate how long it took the tsunami to travel through the Pacific Basin. What is the time interval between each pair of lines?
Examine the map carefully and determine how long it took the tsunami to reach: San Francisco, U.S.A.; Acapulco, Mexico; Galapagos Islands; Tokyo, Japan; Sydney, Australia
Use the distance measuring tool and determine the average speed of the tsunami wave for each interval between the 5 hour and 10 hour lines. What do you observe? Can you explain this?
Prince Rupert in British Columbia, Canada had a measured wave height of 1.4 m, while Astoria, Washington further south had a measured wave height of 0.4 m. Why is this an expected result?
This criterion is linked to a Learning OutcomePort Alberni in British Colombia, however, which is between Prince Rupert and Astoria had a wave height of 6.4 m. Can you think of a reason why the tsunami wave was higher in Port Alberni than in either of Prince Rupert or Astoria? Click here to travel to Port Alberni to give you a clue.
