* Dlr hits 13-mth highs vs euro; euro/yen at 2-1/2 year trough
* Lack of coordinated European bank plan hits confidence
* Yen soars across board, Aussie/yen sinks 5 pct
(Adds quotes, updates prices, changes byline, changes dateline, previous LONDON)
By Wanfeng Zhou
NEW YORK, Oct 6 (Reuters) - The U.S. dollar jumped to a 13-month high against the euro on Monday, while the yen rallied across the board as fears over bank problems in Europe deepened and investors cut risk exposure.
Sentiment worsened sharply against the euro after leaders of Europe's four biggest economies decided against a coordinated bailout plan at a weekend summit.
"The market is shunning the euro. The banking crisis (in Europe) seems to have taken the spotlight over the U.S. and the failure for European officials to come to an agreement on a coordinated type bailout weighed on the euro," said Ronald Simpson, director of global currency analysis at Action Economics in Tampa, Florida.
In early trading in New York, the euro was down 1.4 percent at $1.3577 after sliding to its lowest since late August 2007 at $1.3542 <EUR=>, according to Reuters data.
Against the yen, the euro was down 3.6 percent at 139.88 yen, after falling to 139.82 earlier -- a 2-1/2-year low <EURJPY=>.
"For the short-term at least, it looks like the dollar is maintaining its role as a safe haven despite the problems that we're having here," Simpson said. "The direction for the euro is still lower in the near term."
European banks have been hit hard by the fallout from a crisis that began in the United States when the housing market collapsed and bad mortgage debts multiplied.
In the European stock market, banking shares led share prices down 5 percent on the day. Sweden became the latest country to act against the deepening crisis, with the government saying it would expand bank deposit guarantees and the central bank raising the amount of loans offered to banks.
It followed Germany's pledge on Sunday to guarantee private deposit accounts, a move which spurred similar action by Austria and Denmark. Ireland issued the first such guarantee last week, prompting criticism of a fragmented European Union response.
The moves in Europe were in contrast to the situation in the United States, where the government's $700 billion bank rescue plan was finally passed by Congress on Friday.
"Foreign investors had a love affair with the euro zone up until late last year. If you have an uncoordinated policy response it gives even less reason to invest in the euro zone and that is helping encourage these flows," said Chris Turner, head of FX strategy at ING in London.
The dollar was also helped by strong dollar demand as global money markets remain frozen, analysts said.
The ICE Futures U.S. dollar index, which tracks the greenback against a basket of six major currencies, rose 0.5 percent to 81.305 <.DXY>. It earlier rose to 81.436, a 13-month high.
RISK AVERSION BOOSTS YEN
The yen soared across the board as more worries about the troubles plaguing the global financial system prompted heavy selling of riskier positions in carry trades and stocks.
The dollar was down more than 2 percent to 103.03 yen <JPY=>. Earlier, it fell to a low of 102.86, the lowest in about 4-1/2 months.
The Australian dollar <AUDJPYR> plunged more than 5 percent percent against the yen at one point to a four-year low as investors were forced to dump long-standing carry trades favouring higher-yielding currencies.
"Risk aversion trades re-entered the market in a powerful way after the German government showed little understanding of how to deal with the banking crisis," currency strategists at BNP Paribas write in a research note.
"With the root cause of the problem unlikely to be tackled anytime soon, risk aversion will continue to be the key theme in the market," they said. (Additional reporting by Veronica Brown in London; Editing by Chizu Nomiyama)