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Major Earth changes and destruction which can cause
shifts in landmass and huge waves called a Tsunami.
"As a tsunami approaches the shore,
water may recede from the coast, if it is
shallow enough the water may be pulled back
hundreds of meters. If you are in the area,
observing this is a good indication that a
tsunami is on the way." Read More at
2. "Greek historian Thucydides (460–395
B.C.) in hisHistory
the first to associate tsunamis with
underwater earthquakes." Read More at