Worth a thousand words

I got the image from here on a Google search.  It explains a few big things well:
- why Japan has so many of the world's quakes
- why I did not feel the '95 Kobe earthquake (on the Amur Plate), in Kanto
- why people in Western Japan would not have felt much of the recent quake (see epicentre)
- why the nearest shore, which had just got the worst of the quake, also got the worst of the tsunami