Tsunamis

• Inundation
  • Wave Transition
    • Current
    • Constant Period
    • Tsunamis at Shore
    • Minor Inundation Effects
    • Tides
    • Local Bathymetry and Coastal Orientation Effects
    • Bay and Inlet Resonance
    • Edge Waves
    • Shelf Trapping
    • Summary Questions
      • Question 1
      • Question 2
      • Question 3
      • Question 4
      • Question 5
      • Question 6
      • Question 7
      • Question 8
      • Question 9
      • Question 10
  • Runup
    • Momentum
    • Force
    • Outgoing Waves
    • Bays and Rivers
    • Summary Questions
      • Question 1
      • Question 2
      • Question 3
  • Summary Interaction
    • Question 1
    • Question 2
    • Question 3
    • Question 4
    • Question 5

Question 4

Which of the following tsunami wave effects might be observed in this image? (Choose all that apply.)

a) (Ridge-based) wave focusing

b) Edge waves

c) Shelf trapping

d) Large, long runups

e) None of the above

The correct answers are A, B, C, and D. The long ridges evident in this image of the seafloor off southeast Japan can focus waves on shore. The bit of continental shelf off the coast could also cause shelf trapping or edge waves. In addition, the many bays could be susceptible to large, long runups.