The daily volatility of the South Korean currency rose in the first quarter from three months earlier, affected by emerging market unrest, the central bank said Thursday. The average daily volatility of the local currency was measured at 4.9 won in the January-March period, compared with 3.4 won the previous quarter, according to the Bank of Korea (BOK). The volatility increased in tandem with fluctuations in the currencies of other emerging countries, it said.