impact on Yen is not caused by shipping traffic. it is more about lost infrastructure and reduced output, Radiation contamination will be one to watch on tainted exports.
I'll bet my account on Japan doing everything possible simultaneously to restore consumer welfare, restoring jobs, and restoring trade. Likewise for those men sacrificing themselves to fix the Fukushima fallout.
Hence why the Japanese people would only be interested in restoring the outcome (no/little looting), and not the politics or sympathy that a US disaster would incur.
There are 1020 ports in Japan, 22 of which are main ports of special purpose, 106 main ports and 892 local ports.
Largest major ports - Port of Hakata Port of Kawasaki Port of Kitakyushu Port of Kobe Port of Maizuru Port of Nagoya Port of Osaka Port of Shimonoseki Port of Tokyo Port of Yokkaichi Port of Yokohama Port of Yokosuka Ports of Aomori Ports of Chiba Ports of Ibaraki Yokohama Port Development Public Corporation
-------- article 24Mar2011 -------- "International maritime operations can continue normally at Japan?s major ports, excluding those damaged by the tsunami," SSA said.
It added that while there is currently no medical basis for imposing restrictions, United Nations organisation are monitoring the situation closely and will advise of any changes.
The status of Japanese ports impacted are as follows:
* Kashima - draft limitation of 8 metres * Hachinohe - draft limitation of 9 metres * Kuji - draft limitation of 7 metres * Hitachi - draft limitation of 9 metres * Soma - Open - Discharge of emergency cargoes only * Onahama - Open - Discharge of emergency cargoes only * Oofunato - closed * Ishinomaki - closed * Ooarai - closed