Another update on the situation here, for those who would like to know. Personally, I haven't ventured out much, so I've been staying at home and packing to get ready to go home, but things are back to normal in Tokyo for the most part.
Parts of Tokyo and other prefectures had rolling blackouts starting today, which basically means that part of the day the power will be turned off in a certain area to save on power consumption due to the nuclear plants being down, or something like that. I'm not exactly sure how it works, just that the amount of power needed isn't the output that can currently be supplied.
Inner Tokyo doesn't seem to be affected by the blackouts. Parts of some wards will have blackouts, including parts Toshima-ku where I am currently living, but my area is not affected. We'll keep power here unless that changes for some reason. Wards affected seem to be the outer parts of the outer wards, though. More information is
here. Minato-ku, Shinjuku-ku, Shibuya-ku, Chiyoda-ku and Chuo-ku, main business and commerce wards, don't seem to be affected.
There have been a few aftershocks, but nothing to significant until just now, though it started out small, it escalated into a semi-hard shake, but that part only lasted a couple of seconds and was over.
With all of this, I am kinda glad I'll be going home in a few weeks now. I'm just glad I wasn't in a tall building or in the subway when it happened.