* Euro/dollar hovers near 6 1/2-month low hit in Asia
* Greece, Portugal debt concerns mount
* Dollar supported after FOMC meet, rate rise seen this year
(Adds details, quote, updates throughout)
By Neal Armstrong
LONDON, Jan 28 (Reuters) - The euro slipped on Thursday, hovering near a 6 1/2-month low against the dollar as investors remained wary on concerns over heavily indebted smaller euro zone countries such as Greece and Portugal.
The dollar gained support after Kansas City Fed President Thomas Hoenig dissented from a U.S. Federal Reserve pledge, in a statement after a policy meeting, to keep interest rates low "for an extended period".
This bolstered the view that rates may start to rise later this year. [
]Greek government bond yields have shot up on concerns over how Athens will pay its debts. As a result, the 10-year Greek/German Bund spread blew out on Thursday to its widest since Greece joined the euro in 2001.
The cost of insuring its sovereign debt against default also hit a record high.[
]The spread later narrowed slightly after French newspaper Le Monde reported that euro zone states were studying ways to help Greece resolve its budget problems. [
]Jeremy Stretch, currency strategist at Rabobank in London, said the wide spread was keeping the euro under pressure, while other analysts warned more losses may follow as concerns rise about the grim fiscal conditions in the euro zone.
"The market remains positioned for further euro weakness ahead and risk appetite in general is at a fairly low level."
Debt worries are not confined to Greece.
Ratings agency S&P said concerns over Portugal's public finances had not abated after this week's budget. [
]By 1247 GMT, the euro <EUR=> traded flat at $1.4020. Earlier, it fell to $1.3930, its weakest since mid-July. Large options expiring at $1.4000 on Friday were widely reported.
Technical traders said the euro hit its low after breaking under its 55-week moving average at $1.3980, before a rise in share prices prompted a turnaround. Traders were watching for a weekly close under $1.3980 to open up fresh downside potential.
The euro <EURJPY=R> rose 0.2 percent against the yen to 126.30 yen, but stayed near Wednesday's nine-month low of 125.17 yen.
The dollar was flat against a currency basket <.DXY> after hitting a 5 1/2-month high of 79.066 in early trade. It held above its 200-day moving average at 78.32 following its decisive break above that level on Tuesday.
BERNANKE VOTE AWAITED
The high-yielding Australian and New Zealand dollars rose after U.S. President Barack Obama announced no new measures to punish the financial sector, sparking recovery in risk appetite.
In his State of the Union address on Wednesday, Obama focused on job creation rather than any concrete details of banking reforms [
] Increased demand for risk pushed the Australian and New Zealand dollars each roughly 1 percent higher on the day against their U.S. counterpart.Analysts said some investors bought back higher-risk currencies such as the Aussie and kiwi, which were sold last week when Obama's pledge to crack down on U.S. banks' risk-taking triggered risk aversion.
The New Zealand currency rose even as the Reserve Bank of New Zealand kept interest rates on hold as expected on Wednesday and reaffirmed it saw no need to raise before mid-year.
The dollar rose 0.3 percent to 90.30 yen as the Japanese currency also stumbled on demand for riskier assets.
Investors awaited a U.S. Senate vote on U.S. Federal Reserve Chairman Ben Bernanke's nomination for a second term later in the day. [
](Additional reporting by Naomi Tajitsu; Editing by Nigel Stephenson)