Does every volcano that occurs under the surface of the ocean result
in a tsunami?
S.F. Turkall
Dear S.F.,
Do you mean does every ERUPTION result in a tsunami? There are many
underwater volcanoes that are just sitting there not erupting at all.
Anyway, the answer is no, it is quite possible for an underwater eruption
to not cause a tsunami at all. In fact, I'm having a hard time trying to
think of an underwater eruption that did cause a tsunami. The great
majority of tsunami are caused by earthquakes rather than eruptions.
Scott Rowland, University of Hawaii
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