NOAA tsunami map (I already posted it for Chilean quake exactly a year ago):
The arresting swatch of colour truly makes us grasp the magnitude of forces unleashed by tsunamis that appear to traverse such considerable distances.
click on image to go to map
See how the bathymetry of the deep-sea trench offshore Japan takes a bend, just about where the many aftershocks happened, heralding greater stresses in the earth's crust.
MapLarge map linked from The Mapping Room blog:
This show the earhtquakes over time leading up to the event, in a sparse yet colourful spatio-temporal display I looked for in my previous blog posting.
Breaking news: NHK World announced the Japanese Met Office upgraded the magnitude of the original event to 9.0 on the Richter scale: a 0.1 increase on a log10 scale is 2.5 times greater destructive force than originally measured!
Update 17 March: for social maps, here is a Trends map from ESRI's Disaster Response:
Update 19 March: BBC News posted ESRI's disaster map above on their IT news show Click.