UPDATE 6:06 PM -- TSUNAMI COASTAL EVACUATIONS ORDERED in Hawaii, Mexico, Central and South America western coasts  (SEE BOTTOM) -- The southern Pacific ocean is suffering very MAJOR earthquakes today.   As of 2:50 PM eastern U.S. time, back-to-back severe earthquakes have just struck measuring Magnitude 7.8 and 8.0 respectively.  Both SEVERE quakes took place at a depth of only 6 miles and TSUNAMI WARNINGS ARE ISSUED !!!!!!