Mild earthquake

I experienced my first earthquake this morning! I had been wondering when there would be one. It was just a light trembling and lasted only a couple of seconds. At the epicenter, in the ocean east of Japan, the magnitude was 5.8, but the quake was very mild in Tokyo. If I had been walking in the apartment I probably wouldn't have felt it at all, but since I was lying in bed I could feel the slight trembling. Call me crazy, but I have been excited to experience an earthquake ever since I got to Japan!