* Greek fiscal woes hurt euro after S&P comments
* Yen hits 3-week high vs dollar, 1-year high vs euro
* U.S. jobless claims rise unexpectedly in latest week (Adds details, comment, updates prices)
By Wanfeng Zhou
NEW YORK, Feb 25 (Reuters) - The dollar and euro fell against the yen on Thursday as worries about the Greek debt crisis and an unexpected rise in U.S. initial jobless claims boosted safe-haven flows into the Japanese currency.
The euro earlier neared a nine-month low against the dollar and hit a one-year low versus the yen as worries about Greece intensified after ratings agency Standard and Poor's said late on Wednesday it may cut Greece's rating by one or two notches within a month. [
]Investors' appetite for risk fell further after U.S. data showing first-time filings for unemployment benefits unexpectedly rose in the latest week, fuelling concern about the labor market. See [
]"The yen has strengthened through Asian and European trading. Sovereign risk fears and the threats of a downgrade of Greece has definitely had an impact," said Sacha Tihanyi, currency strategist at Scotia Capital in Toronto.
"The initial jobless claims data has really helped to push more of a U.S.-centric feeling of risk aversion," he added. "Once we saw that data come out around 8:30 a.m., dollar/yen dropped quite rapidly."
In mid-morning trading, the dollar dropped to a low of 88.95 yen <JPY=>, its lowest in about three weeks, according to Reuters data. It was last at 89.05 yen, down 1.3 percent.
The euro fell as low as $1.3452, near a nine-month low of $1.3442 hit on Friday, according to Reuters data. It last traded at $1.3504, down 0.2 percent.
Among other ratings agencies, Moody's Investors Service told Reuters on Thursday any changes in its ratings on Greece would depend on whether Athens delivered on its fiscal reform plans See [
].Fitch Ratings expects to keep Greece's BBB+ rating unchanged for the next few months barring surprises and is maintaining its negative outlook. See [
]The spread between Greek and German 10-year government bonds widened, and the cost of insuring Greek debt against default also rose [
].HIGH-YIELDERS TUMBLE
Concerns over Greece and other peripheral euro zone countries' ability to pay their debts have driven the euro down more than 10 percent versus the dollar from its December highs.
EU inspectors visiting Athens have told authorities they see a deeper than expected recession and higher borrowing costs hindering Greece in meeting its deficit-cutting targets. See [
]The inspectors anticipate Greece will only be able to cut its deficit-to-GDP ratio by 1.5-2.0 percentage points compared with a 4 percentage points target this year.
Against the yen, the euro traded as low as 119.77 yen <EURJPY=>, the lowest since February, 2009, according to Reuters data. It was last at 120.28 yen, down 1.4 percent on the day.
"We are likely to see the single-currency trend lower going into the following month as risk trends continue to dictate price action in the forex market," said David Song, currency analyst at DailyFX.com in New York.
Analysts said the yen is likely to remain in favor going into the Japanese fiscal year-end. Japanese corporates traditionally repatriated overseas' revenues back to their domestic currency ahead of the financial year close on March 31.
Higher-yielding currencies such as the Australian and New Zealand dollars also came under heavy pressure.
The Australian dollar fell 1.2 percent to US$0.8824 <AUD=> and was down 2.4 percent at 78.55 yen <AUDJPY=R>. The New Zealand dollar dropped 0.7 percent to US$0.6877 <NZD=>. (Editing by Chizu Nomiyama)