Science: Tsunami the Terrible

Beneath the black waters of the Aleutian Deep the earth moved. Some 15,000 feet down and 70 miles southeast of Unimak Island (see cut), nature was building a mountain which living men might never see. But the secondary results were visible enough: 1) quivering squiggles which are the seismographic record of earthquake violence; 2) a series of tsunami* ringing out from the earthquake center, carrying death & destruction to Hawaii, spreading alarm across the Pacific.

Tsunami follow any submarine earthquake which causes a fissure or crack in the earth's crust. When a part of...

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