* U.S. House rejects $700 bln bank bailout plan
* Yen hits a 4-month high vs U.S. dollar
* Asian share markets fall as much as 4 percent (Updates prices, adds European outlook)
By Kevin Plumberg
HONG KONG, Sept 30 (Reuters) - Asian stocks fell, chalking up the biggest monthly decline in more than a decade, and the yen hit a 4-month high on Tuesday after U.S. lawmakers rejected a $700 billion plan to end financial panic and stave off recession.
Major European stock markets were expected to open down as much as 4.4 percent, according to financial bookmakers, on expectations the crisis of confidence in the bank industry will keep spreading through Europe, damaging the global economy.
The unexpected outcome in Washington after days of political wrangling amplified fear among investors, spurring them to dump emerging market assets in favour of less risky investments in government bonds or even U.S. dollars.
The costs of protection against debt defaults and restructuring soared and borrowing rates among banks in Asia jumped, reflecting the tensions in credit markets globally.
"Market meltdown is likely to continue unless an alternative plan is passed, which may or may not happen this week," Dariusz Kowalczyk, chief strategist at CFC Seymour in Hong Kong, said in a note.
Japan's Nikkei share average <
> closed down 4.1 percent at a three-year low, and the MSCI index of Asia-Pacific stocks outside Japan <.MIAPJ0000PUS> fell 3.1 percent.The Asia-Pacific index is down more than 17 percent in September, the largest decline since October 1997 when the region was battered by the Asian financial crisis.
The overnight failure of Washington's biggest and most comprehensive bid to keep financial sector shockwaves from tearing up the real economy handed the U.S. S&P 500 stocks index <.SPX> its biggest decline since October 1987.
U.S. stock futures <SPc1> were up 1.5 percent and pointed to a higher open on Tuesday.
LOSSES TRIMMED
September was laced with explosive events that have turned Wall Street upside down and threatened the global financial system, including the bankruptcy of Lehman Brothers <LEHMQ.PK>, the U.S. government rescue of American International Group <AIG.N> and the demise of the U.S. investment banking model.
Tighter rules on short-selling, combined with expectations that U.S. lawmakers will eventually approve a rescue plan helped many Asian stock markets fight back from their lows on the day, but analysts expected broad risk reduction to continue as investors pulled money out of the region.
Hong Kong's Hang Seng index <
> was down 1.3 percent, while South Korea's KOSPI < > pared early losses of 5.5 percent to close down 0.6 percent.Emerging markets have been particularly hurt by this so-called deleveraging in global markets. For example, the MSCI emerging markets equity index <.MSCIEF> was down 1.8 percent on Tuesday, outstripping the 0.8 percent decline on the All-Country World index <.MIWD00000PUS>.
Asia's local currency bonds fared no better than the stock markets, with State Street's ABF pan-Asia bond index fund <2821.HK> down 1.85 percent to a two-year low.
U.S. RECESSION LOOMS?
Investors around the world have been scrambling to eliminate any risk in their portfolios, loading up on traditional safe harbours like short-term U.S. government debt and gold.
Gold prices in the spot market were largely unchanged at $904.60 an ounce <XAU=>, after rising 5 percent to touch a two-month high overnight of $920 an ounce.
"The gold market is telling us that the world economy is in peril," said Jeffrey Nichols, managing director of American Precious Metals Advisors.
In the Treasuries market, two-year notes <US2YT=RR> fell 8/32 in price, lifting their yield 13 basis points to 1.76 percent from late in New York following the massive 46 basis point drop on Monday.
Yields on the 10-year note <US10YT=RR> edged up 4 basis points to 3.62 percent but were still down 23 basis points for the week.
Another asset that has gained favour during times of widespread uncertainty is the yen.
Though central banks outside the United States have had to set up special currency swap programs to meet high demand for U.S. dollar funding, investors have been turning to the yen as a haven because of Japan's large external surplus.
The dollar dropped to a 4-month low near 103.50 yen before edging back up to 104.18 yen <JPY=>. The euro was down 0.3 percent at 149.51 yen <EURJPY=>.
The dollar firmed, particularly against European currencies, as investors held on to the relative safety of the currency from the world's largest economy. The euro fell 0.4 percent to $1.4360 <EUR=>, while the dollar climbed 0.5 percent against the Swiss franc to 1.0950 francs <CHF=>.
A gloomier outlook for the global economy weighed on oil and industrial metals such as copper, tin and lead. U.S. crude futures <CLc1> held around $96 a barrel after diving almost 10 percent the previous session, while London copper prices fell to a nine-month low.
"In the U.S., we should expect a longer, deeper recession, further consolidation of the banking sector, and further steps by the authorities to help the situation," said Gerard Lyons, chief economist and group head of global research with Standard Chartered in London.
"The more the U.S. and the more China slows, the more Asia will be hit and the greater the fall in commodity markets, with all regions including Africa and the Middle East slowing." (Editing by Lincoln Feast)