The Mega-Quake situation is that Gaia/Mother Earth has been shifting the time-line for the 9.5 Mega-Quake to occur right off-shore Japan from its original midnight (Japan) time. These shifts have happened in stages. The intention of these shifts is to "buy time" for the people of Japan to awake, get dressed, and go about their business in broad daylight. Mother Earth/Gaia took compassion on the Japanese people and determined not to have that monster quake (and tsunami) occur in the middle of the night when it was pitch black and people were asleep and could not get to safety easily.
In order to "buy" that merciful delay time, Gaia today twice released some of the built-up pressure caused by the the Okhotsk tectonic Plate (that Japan rests on) and its resistance to the subduction of the Pacific Plate edge trying to move down under it.
Thus there have been two major quakes today near Honshu, Japan: a 5.1 magnitude quake right after midnight (Japan time) Monday, July 25, 2011 at 12:07 (the original time for the Big One to strike); and three hours later a 6.2 magnitude quake Monday, July 25, 2011 at 03:51:25 AM (Japan time), (which is 11:52 am this morning US West Coast time.)
The 9.5-magnitude mMega-Quake's time-line shift, in stages, several times during today.
The latest indication is that the 9.5 Mega-Quake will still occur, but later, around the 9 am or 10 am hours of Monday morning in Japan.
In the U.S., this will be equivalent to the 5 or 6 pm hours today (U.S. Sunday) on the West Coast, and the 8 or 9 pm hours on our East Coast. [In UK that will be 11 pm or midnight BST, and 00:00 or 01:00 hrs. GMT/UTC.]