one of the bigger ones

Tokyo has not suffered a major earthquake since a 1923 temblor that killed 140,000 people, but many experts say the capital is overdue for another strong quake. A government report last year said a powerful earthquake under Tokyo could kill as many as 12,000 people and destroy 850,000 homes. Yahoo! news

click map for Japanese info.

Magnitude
6.1

Date-Time
Saturday, July 23, 2005 at 07:34:58 (UTC)
Saturday, July 23, 2005 at 04:34:58 PM local time at epicenter

Location
35.49N 139.97E

Depth
72.3 kilometers

Region
NEAR S. COAST OF HONSHU, JAPAN

Reference
30 km (20 miles) SE of TOKYO, Japan
110 km (65 miles) SSW of Mito, Honshu, Japan
130 km (80 miles) E of Kofu, Honshu, Japan
130 km (80 miles) SE of Maebashi, Honshu, Japan

click map for English info.

One of these days a big one would hit and that would be the end of it all, at least for me.

edit: Two noticable aftershocks, one on the same day immediately after the initial shock, another just right now on the next day 6pm.