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EARTH SCIENCE > OCEANS > OCEAN WAVES > TSUNAMIS

Definition:
Japanese for "wave in bay." A long-period wave generated by
rapid displacement of water, such as by seismic disturbances to the sea
floor.  Tsunamis travel at speeds of about 700 km/h in the open ocean and
build to dangerous heights and energy density when their speed slows in
shallow waters.  


Reference:
Adapted from:
Garrison, T. 1993. Oceanography, an Invitation to Marine
Science. Wadsworth Publishing Co. p. 528.
Neshyba, S. 1987. Oceanography,
Perspectives on a Fluid Earth. John Wiley and Sons, Inc. p. 491.