You can only go back to the 23rd now, so the Tsunami morning isn't there.. You have to choose LARGE (top left of page) then click on an image (lower left), and hold the SHIFT key down while pressing [Page Down] until all files are highlighted. Then click on Submit Query. I could have been wrong about the imagery shift/earthquake pertanence, but an opening in cloud coverage definitely occurs in frame  (as of today), that wasn't there in frame .
Nothing I do will let me post that site here :(.
It's on that official US Navy site I posted. Try searching "Indian Ocean" under the search feature.. These instructions only make sense once you get to the satellite loading page. It doesn't seem very user friendly or idiot proof. I wonder if it's for staff only. I can't get back there without going from my browser's history file..