Just had a pretty interesting experience. Just after noon, we had a pretty long earthquake. It sort of started softly but then got bigger, and the ground was shaking for about a minute I'd say. It wasn't all that big, but big enough that I could see the building across the street swaying.
Anyway, what's interesting is that the quake itself wasn't all that big, 6.9, and it was really far away from where we are. It was I guess a hundred km south or something. But the areas affected were all directly north of it. Other parts of Japan that are actually closer to the epicenter weren't affected. I guess maybe the fault runs north-south.