This quake was M7.3, its epicenter was off the coast of Ibaraki Prefecture, near where the mega quake in March of 2011 was (often referred to as "3/11"). It was followed by a M6.2 aftershock. What people are kinda worried about now is that this pattern of quakes matches what happened with the 3/11 and that maybe the intensity of these quakes will continue to to climb. Let's hope that doesn't happen again.
My school is just outside of Tokyo, about 35 minutes from Shinjuku. I heard there was a little damage to the same building where the English Department is. It's much older than the main building with the kids' classrooms. The two separate buildings are joined together on the 2nd and 3rd floors and I heard there was some buckling near joints where the two buildings meet. I heard there was also a portion of a ledge on the 4th floor that partially came loose that will probably need to be repaired. I'm not sure about the details, though; I left with my other teacher friend shortly after watching a bit of the news with all the other teachers. :p
But anyway, everything seems to be okay right now. If you catch the news and read about the big quake in Japan, don't worry too much. It was a bit shocking and reminiscent of 3/11 but overall I think we're all okay.
