* Euro under broad selling pressure, Greece jitters remain
* Euro hits 10-yr low vs Aussie, tumbles vs SEK, NOK
* EU pledge to help Greece short on details, analysts say
(Adds comments, updates throughout; previous TOKYO)
By Naomi Tajitsu
LONDON, Feb 12 (Reuters) - The euro fell broadly on Friday, staying under pressure after a pledge by the European Union to help Greece tackle its fiscal problems did little to quell uncertainty surrounding ballooning Greek sovereign debt.
EU nations on Thursday offered their solidarity and support to help Athens rein in its deficits, a message that was echoed by the International Monetary Fund and the European Central Bank on Friday. [
] [ ]Still, a lack of details on what will be done to help Greece kept investors jittery, resulting in widening yield spreads between benchmark government bonds in Greece and Germany -- widely considered the safest in the euro zone.
That helped push the euro down across the board, striking a decade low against the higher-yielding Australian dollar <EURAUD=R> at A$1.5313 and plumbing its lowest level against the Swedish and Norwegian crowns since autumn 2008.
"The EU's intentions are good, but the market would like details," said Kasper Kirkegaard, currency analyst at Danske in Copenhagen.
"Until we get more details on a political solution for Greece, the euro is going to stay under selling pressure."
Concern over how Athens will service its debt has hammered the euro -- it is trading near a 8 1/2-month low versus the dollar, having fallen nearly 10 percent since late 2009.
By 0905 GMT, the euro <EUR=> had fallen half a percent on the day to a day's low of $1.3609, closing in on $1.3585, its weakest since May 2009 which it hit earlier this month.
Investors were awaiting euro zone fourth-quarter economic data due at 1000 GMT after data released earlier on Friday showed German growth stalled in October-December, while French growth grew 0.6 percent.
Ongoing uncertainty about Greece kept investors risk-averse on currencies, boosting the dollar across the board as a safe haven. Against a currency basket <.DXY>, it rose 0.4 percent to 80.290, hovering near a seven-month high of 80.683 hit earlier this month.
The Swiss franc bumped lower in early European trade, pushing the euro <EURCHF=R> more than 50 ticks to a day's high of 1.4695 francs, while the dollar jumped to 1.0794 francs from around 1.0750.
The Swiss National Bank declined to comment on the sudden move in its currency. [
]As Greece's fiscal woes continue to hang over the market, investors await meetings early next week between EU finance ministers, although analysts said that might still be too early to expect much clarity on what steps the bloc would take to help Greece tackle its debt. [
]"There will still be a lot of questions hanging around," said Gareth Berry, currency analyst at UBS in Singapore. "The EU have no experience of this type of thing. They are not the IMF and they will be very careful not to plunge into this with both feet and not think things through." (Additional reporting by Tokyo Forex Team; Editing by Susan Fenton)