A member asked:

Why do some earthquakes in the ocean cause tsunamis, and others do not?

A doctor has provided 1 answer
Dr. Heidi Fowler answered

Specializes in Psychiatry

Tsunamis: Subduction earthquakes cause vertical movement of the earth’s crust at fault lines. Tectonic earthquakes cause significant deformation of the crust. Both of these displace water & create waves. When a significant sized portion of the sea floor is elevated, a tsunami can result.

Answered 5/22/2017

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