THE KILLER CALLED TSUNAMI

(1)TSUNAMI IS THE SERIES OF LARGE WAVES OG EXTREMELY LONG WAVELENGTH AND PERIOD USUALLY GENERATED BY A VIOLENT,IMPULSIVE UNDER SEA DISTURBANCE OR ACTIVITY NEAR COAST OR IN THE OCEAN.WHEN A SUDDEN DISPLACEMENT OF A LARGE VOLUME OF WATER OCCURS, OR IF THE SEA FLOOR IS SUDDENLY RAISED OR DROPED BY AN EARTHQUAKE,BIG TSUNAMI WAVES CAN BE FORMED BY FORCES OF GRAVITY.
(2)OFTEN THE TERM,"SEISMIC OR TIDAL SEA WAVE" IS USED TO DESCRIBE THE SAME PHENOMENON,HOWEVER THE TERMS ARE MISLEADING,BECAUSE TSUNAMI WAVES CAN BE GENERATED BY OTHER,NON SEISMIC DISTURBANCE SUCH AS VOLCANIC ERUPTION OR UNDERWATER LANDSLIDES AND HAVE PHYSICAL CHARACTERSTICS DIFFERNT FROM TIDAL WAVES.
(3)THUS,THE JAPANESE WORD 'TSUNAMI',MEANING 'HARBOUR WAVE' IS THE CORRECT,OFFICIAL AND ALL INCLUSIVE TERM. IT HAS BEEN INTERNATIONALLY ADOPTED BECAUSE IT COVERS ALL FORMS OF IMPULSIVE WAVE GENERATION.

(4) BY FAR,THE MOST DESTRUCTIVE TSUNAMI  ARE GENERATED FROM LARGE,SHALLOW EARTHQUAKE WITH AN EPICENTER OR FAULT LINE OR ON THE OCEAN FLOOR.THESE USUALLY OCCUR IN REGIONS OF EARTH CHARACTERIZED BY TECTONIC PLATE BOUNDARIES.MAJOR EARTHQUAKES ARE SUSPECTED TO CAUSE MANY UNDER-WATER LANDSLIDES  ,WHICH MAY CONTRIBUTE SIGNIFICANTLY  TO TSUNAMI GENERATION . ALSO TSUNAMI CAN BE CREATED FROM VERY LARGE NUCLEAR EXPLOSION .

(5) ONCE A TSUNAMI HAS BEEN GENERATED,ITS ENERGY IS DISTRIBUTED THROUGHOUT  THE WATER COLUMN,REGARDLESS OF THE OCEAN'S DEPTH.A TSUNAMI IS MADE UP OF A SERIES OF VERY LONG WAVES.AN EARTHQUAKE IN YOUR AREA IS THE NATURAL TSUNAMI WARNING. IF THE TSUNAMI IS GENERATED FROM A LARGE EARTHQUAKE OVER A LARGE ITS INITIAL WAVELENGTH AND PERIOD WILL BE GREATER..

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