This is an early report:
The 8.9-magnitude earthquake -- the world's fifth-largest since 1900 and the biggest in Japan in 140 years -- struck at 2:46 p.m. local time, shaking buildings violently in Tokyo for several minutes and sending millions fleeing for higher ground.(LA Times).
At least 60 people are believed dead, though that number is expected to rise dramatically as officials begin assessing the extent of the damage. Japanese media is reporting scores of people missing, likely buried under rubble or swept away by waves as high as 33 feet.