NEW YORK (Reuters) - Wall Street jumped 1.5 percent and European shares climbed to a seven-year high on Thursday as world markets cheered the European Central Bank’s new stimulus program, worth more than 1 trillion euros, while the euro slipped to an 11-year low.

Traders work on the floor of the New York Stock Exchange January 21, 2015. REUTERS/Brendan McDermid

Investors readying for a rise in global liquidity initially lifted U.S. Treasuries, whose relatively rich yields grew more attractive with prospects of lower euro zone bond yields, before prices turned lower.

“It’s likely to impact yields everywhere,” said Aaron Kohli, an interest rate strategist at BNP Paribas in New York. “When you put this much stimulus into the markets, it’s going to go other places that you hadn’t intended, and one of those places is going to be U.S. debt.”

The ECB’s program to buy euro-zone government bonds, along with its existing schemes, will pump 60 billion euros a month into the euro zone economy. It is set to run from March until September 2016.

ECB President Mario Draghi made clear the plan could be extended if the bank felt that was necessary.

Robust U.S. economic data added to gains on Wall Street, where the Dow Jones industrial average .DJI provisionally ended ahead 260.6 points, or 1.48 percent, at 17,814.88, the S&P 500 .SPX rose 31.08 points, or 1.53 percent, to 2,063.2, and the Nasdaq Composite .IXIC added 1.78 percent to 4,750.40.

Thursday’s gains turned the S&P and Nasdaq index positive for 2015 to date, with banks leading the gains.

Europe's pan-regional FTSEurofirst index .FTEU3 ended up 1.6 percent, as Scandinavia and eastern European markets rose in tandem. London's top stock index .FTSE added 1 percent and touched a four-month peak in a sixth straight winning session.

As the euro slumped to a nadir of $1.1318 last touched in September 2003, an index that measures the dollar against six of the world's main currencies .DXY rose 1.6 percent. The euro EUR= was last at $1.1339.

Denmark's crown EURDKK=D3 tumbled against the euro after the country's central bank cut its key rate to a record low -0.35 percent from -0.20 percent.

The benchmark 10-year Treasury note US10YT=RR was off 6/32 and yielding 1.8717 percent, after falling as low as 1.81 percent, down from 1.94 percent before the ECB's announcement. The 30-year US30YT=RR yielded 2.4440 percent, reflecting a price decline of 4/32, after going as low as 2.40 percent, down from 2.54 percent before the announcement.

German 10-year government bond yields DE10YT=RR hit record lows of 0.377 percent as European government borrowing rates plummeted.

Oil and gold XAU= prices bounced around as hopes that the ECB's action would boost growth contended with the threat of a stronger dollar, which would put pressure on products priced in the U.S. currency. <O/R>

Brent and U.S. crude futures gave up earlier gains to fall to $48.86 LCOc1 and $46.59 per barrel CLc1. Gold XAU= was up nearly 1 percent to $1,305.30 an ounce.