Following up this article http://fukushima-diary.com/2012/01/m7-hit-japan-and-water-leakage-at-reactor4/
After the earthquake, it turned out that the fallout amount in Fukushima from 1/2/2012~1/3/2012 spiked up to be 558.1 Bq/m2 (Cs-134 and 137).
The total fallout of Fukushima of November was only 347.7 Bq/m2 for 30 days, which is less than the fallout of the 2 days of 1/2 and 1/3.
Also, the total fallout of Tokyo of April was 570 Bq/m2 for 30 days.
The earthquake hit Japan at 14:34 on 1/1/2012 but the data from 9:00 1/1/2012 ~ 9:00 1/2/2012 is ND.
No explanation is given for this.
(Source) Iori Mochizuki