Still Aftershocking

Just had an M7 quake off the coast of NE Japan, which shook alot of the NE area at around intensity 4. They also issued a tsunami warning of 50 cm for the coastline of 3 prefectures up there. Didn't shake very much over here though, only around intensity 2, but it did shake for a good minute. Started with a little vertical shaking, then with some horizontal swaying. I thought I had been seeing a few more quakes in popping up in the area lately...