Following up this article.. [Breaking] M7.3 Fukushima offshore / 3m of Tsunami is coming / Fukushima plant status unknown [URL]
In the evening of 11/22/2016, Tepco announced the radiation monitoring post in the sea has been suspended due to the quake. The post is situated at the end of the breakwater of Fukushima plant port. They cannot monitor the radioactive substance spreading to the Pacific with this monitoring post out of order.
They also admitted the underwater fence was damaged, and also the coolant water got out of the common spent fuel pool due to the quake. It reportedly spread over 2m * 3m but the exact volume is not announced.
About 40 minutes after the quake, Tepco announced they found no abnormality in Fukushima plant however 1m high tsunami was observed reaching the plant port.Iori Mochizuki