* Quake, tsunami rattle investors over impact on economy
* Yen rises on expectations of fund repatriation
* Long-dated U.S. bond prices fall on Japan fears (Updates to close of European markets)
By Herbert Lash
NEW YORK, March 11 (Reuters) - Japan's massive earthquake and devastating tsunami slammed risk assets across the world on Friday, but the still unknown damage to the world's third-largest economy later drove some markets higher.
Oil prices slid more than $3 a barrel at one point and equity markets initially sold off as investors tried to assess the impact after Japan's biggest earthquake on record hit the country's northeast, leaving at least 1,000 dead. For details see [
].The quake, the most powerful since Japan started keeping records 140 years ago, sparked at least 80 fires in coastal cities and towns, Kyodo said. Japanese nuclear power plants and oil refineries were shut and one refinery was ablaze.
But some U.S. markets rose late in the session, with gold rising after the dollar weakened against the euro and U.S. stocks posted clear gains. Copper steadied by the close, recovering from an earlier three-month low, as investors reassessed the likely fallout.
The magnitude 8.9 quake may prompt insurance firms to sell assets to pay claims for damages, and bond investors were watching to see if insurers dispose of U.S. government debt to raise cash. [
]The yen advanced on expectations that Tokyo will repatriate funds to pay for repairs whose costs were still unknown.
Thanos Bardas, a portfolio manager at Neuberger Berman in Chicago, said the U.S. government bond market was totally confused, caught like a deer in the headlights.
"The long-term response is counterintuitive," he said. "You have this event risk that drives people into Treasuries, but on the other hand you have things that need to be rebuilt so that means maybe higher global growth and higher yields, globally."
U.S. crude <CLc1> dipped below $100 before paring some losses. Japan is the world's third-largest energy consumer and imports almost all its energy needs.
MSCI's all-country world index of global stocks <.MIWD00000PUS> fell to a five-week low but then rose 0.1 percent.
"We need to think what the potential impact on the Japanese economy from the quake will be and what the impact on the global economy will be," said Olivier Jakob, with Petromatrix. "That may weigh on oil demand from Japan and the oil price."
Japanese equity futures fell 3.3 percent, but some investors said shares may not suffer too deep a slide because major cities and manufacturing facilities were not damaged. [
]Tsunami warnings were lifted for some densely populated Asia Pacific countries previously thought to be at risk. [
]The quake shut refineries and other industrial facilities in Japan, driving oil lower. North Sea Brent was poised to post a weekly loss for the first time in seven weeks, with U.S. crude on track to end down for the first week in four.
The oil market also monitored a planned day of protests in top oil exporter Saudi Arabia and the violence in Libya, where oil exports have been disrupted.
"The earthquake is clearly risk-negative, and you have seen continuation of selling that has been going on all week. But there are plenty of other things to make the world unhappy," said Nick Moore, RBS global head of commodity and strategy.
North Sea Brent <LCOc1> fell $1.91 to $113.52 per barrel, while U.S. light sweet crude was off $1.72 at $100.98.
European shares fell to a 2011 closing low, with insurers among the hardest hit, but U.S. stocks rose, led by gains in energy shares. The S&P energy index <.GSPE> was up 2.1 percent, with refining shares among the biggest gainers. Valero Energy Corp <VLO.N> was up 6.3 percent and Tesoro Corp <TSO.N> up 8.3 percent.
The pan-European FTSEurofirst 300 index <
> of top shares fell 0.8 percent at 1131.78."The Japanese earthquake has had a direct impact on the insurers, but investors are also worried about issues like what is going to happen with the Europe stability fund and whether other countries could get downgraded," said Colin McLean, managing director at SVM Asset Management in Edinburgh, which has about 650 million sterling ($1.05 billion) under management.
U.S. retail sales rose 1.0 percent in February, the largest gain in four months, as shoppers stepped up purchases of autos, clothes and other goods even as they spent more for gasoline. [
]News that U.S. consumer sentiment fell to its lowest level in five months in early March as gas prices rose later took some of the glow off the retail sales report. [
]The Dow Jones industrial average <
> was up 55.09 points, or 0.46 percent, at 12,039.70. The Standard & Poor's 500 Index <.SPX> was up 8.81 points, or 0.68 percent, at 1,303.92. The Nasdaq Composite Index < > was up 13.86 points, or 0.51 percent, at 2,714.88.The yen gained against the dollar <JPY=> and the euro <EURJPY=>, buoyed by expectations repatriated funds will flow in to pay to repair damage caused by the quake and tsunami. [
]The yen recovered after an initial knee-jerk reaction to sell the currency drove it to a two-week low against the dollar. Analysts said the yen could stay choppy on near-term worries about the impact on a shaky Japanese economy.
Gold pushed higher, underpinned by the Japan quake and Mideast turmoil.
"You have huge global macro events happening and everybody is focused on these events. You have had almost this perfect storm over the past two days," said Cort Gwon, chief strategist at HudsonView Capital Management in New York.
U.S. Treasury debt prices dropped on fears that Japanese insurers may need to sell bonds to pay for damages. [
]The benchmark 10-year U.S. Treasury note <US10YT=RR> shed 10/32 in price to yield 3.40 percent. (Reporting by Rodrigo Campos, Robert Gibbons, Karen Brettell, Emily Flitter and Carole Vaporean in New York; Writing by Herbert Lash; Editing by Leslie Adler)