when i was a amature in trading in the occurrence time of Tsunami , i did a short sell trade on Japanese Yen ,but it had a sharp bullish trending movement . when it comes to Tsunami however it destroys infrastructure and as it turns out currency value should decrease but in reality it means central bank has to offer loans to companies in order to rebuild the country .so interest rate should be decreased and when ALL companies RUSH into borrowing currency from government ,that currency is safe heaven which means will not going any lower than current rate. so as a result Japanese Yen increased against USD.
