Completar frases TsunamisVersión en línea Find the missing words por david archambaud 1 strikes landfall reverse shallow expands lowers through deep location tide over displacing push warnings height hit raises engulf earthquakes plates 500 The are few , the signs are sudden , the goes into , a thunderous roar fills the air , and then , it . And when it is , nothing is left . A tsunami . The word in Japanese means " harbor wave " . Japan has been by many tsunamis in its history as a result of its . It lies across the edges of 4 tectonic where most , the principal cause of tsunamis , are born . When two tectonic plates together , the resulting earthquake sends an enormous burst of energy up the ocean , enormous quantities of water . A series of waves in all directions . In water these waves travel fast , up to miles an hour , but only reach a of a few feet . A passing ship might not even notice . But as the waves enter waters , friction with the ocean floor the waves' speed and their height until at they can a ten - story building . " get in ! Get in ! get in ! " 2 warned ordinary coastline recedes destroyed triggered wake reached damage crest 2004 inland off occurred prevent survivors monitor path higher 60 alert Unlike waves , a tsunami wave doesn't and break . Instead , it advances like a wall of water that crashes over the and everything in its way reaching even as far as a mile . More is caused when the wave , dragging everything in it back underwater and most tsunamis have multiple waves , each arriving anywhere from 10 to minutes after the first strike , just when think the danger is over . The deadliest tsunami ever recorded in December of . An earthquake the coast of Indonesia a tsunami that surged across the Indian ocean and as far as the coast of Africa . Whole sections of cities were . More that 200 000 people died . Most had no way of being . 5000 mile away , the Pacific Tsunami Warning Center in Honolulu is on call 24 hours a day to a similar tragedy from happening in the United States . Scientists tremors and quakes from around the globe . If a quake big enough to cause a tsunami occurs , it is their job to the coastlines in the tsunami's . The advice is simple : move to ground , wait for news that the tsunami has passed and be ready to deal with the ruins left in its .