finally able to search the Japan quake, so here is results fro March 1, 2011 thru Apri 1, 2011 of 6.5 or higher.
Before the big one, there were two quakes, 7.3 about 48 hours prior and a 6.5 a day and a half before the 9.1
Kept timing out when I tried the 5.0 quake or above.
6.5
off the east coast of Honshu, Japan
2011-03-12 01:47:15 (UTC)
20.0 km
6.6
near the east coast of Honshu, Japan
2011-03-11 11:36:40 (UTC)
25.7 km
6.5
near the east coast of Honshu, Japan
2011-03-11 08:19:24 (UTC)
6.8 km
7.7
off the east coast of Honshu, Japan
2011-03-11 06:25:50 (UTC)
18.6 km
6.5
off the east coast of Honshu, Japan
2011-03-11 06:20:04 (UTC)
49.3 km
6.6
off the east coast of Honshu, Japan
2011-03-11 06:18:49 (UTC)
16.0 km
7.9
near the east coast of Honshu, Japan
2011-03-11 06:15:40 (UTC)
42.6 km
6.7
off the east coast of Honshu, Japan
2011-03-11 06:08:29 (UTC)
2.8 km
9.1
2011 Great Tohoku Earthquake, Japan
2011-03-11 05:46:24 (UTC)
29.0 km
6.5
near the east coast of Honshu, Japan
2011-03-09 21:24:01 (UTC)
15.0 km
7.3
near the east coast of Honshu, Japan
2011-03-09 02:45:20 (UTC)
32.0 km
[
link to earthquake.usgs.gov (secure)]