This map shows 9323 earthquakes equal to or greater than 4.5 magnitude that occurred during 2011 on a global map in sequence from Jan. 1 through Dec. 31,
with magnitude indicated by circle size and louder volume for higher magnitude quakes. (This is a pretty amazing presentation.)
As you will see the greatest portion of quake activity was in the Pacific Rim with the largest concentration apparently in the area of Japan.
Note Fukushima Earthquake hits around 1:50 mark
Total time 9 minutes 3 seconds.
Hat tip S Clay, Zero Hedge