Not from a geological perspective.
From headlines in the media over the past few weeks, you'd think the Japanese earthquake was some highly unusual and unexpected event. While the exact location of large earthquakes is always a surprise (to a certain extent), Japan is well suited for occassional megaquakes like this.
Look at a map of Japanese seismicity since 1990! The purple line is the subduction zone where the Pacific Plate dives beneath Japan and the different color dots represent earthquakes of different depths (deeper as you move west of the trench). Earthquakes occur all along that subducting plate and some of them will be very large.