US STOCKS-Wall St falls on Alcoa, Japan; miners sell off

* Alcoa Q1 profit tops estimates but revenue misses

* Japan raises nuclear crisis level to same as Chernobyl

* Stocks down: Dow 0.5 pct, S&P 0.5 pct, Nasdaq 0.5 pct

* For up-to-the-minute market news see [STXNEWS/US]
(updates to early morning trade)

By Angela Moon

NEW YORK, April 12 (Reuters) – U.S. stocks fell on Tuesday
after a disappointing revenue miss from Alcoa to start off the
earnings season and a sell-off in commodities, coupled with
Japan’s upgrade of the severity of its nuclear crisis.

Shares in Alcoa Inc (AA.N: Quote, Profile, Research) slipped 5 percent to $16.88
shortly after the open. The company reported revenue that
missed forecasts after the closing bell on Monday. For details,
see [ID:nLDE73B02A]

Japan raised the severity of the Fukushima nuclear power
plant accident to the highest level on the International
Nuclear and Radiological Event Scale, putting it on par with
the Chernobyl 1986 disaster. [ID:nL3E7FB2TZ]

Mining stocks fell as metals prices dipped on worries
Japan’s massive earthquake and a nuclear crisis would weaken
recovery prospects in the world’s third-largest economy.

Selling in key commodities were also triggered after
Goldman Sachs (GS.N: Quote, Profile, Research) warned its clients to lock in trading
profits before oil and other markets reverse. U.S. traded
shares of Rio Tinto (RIO.N: Quote, Profile, Research) fell 2 percent to $72.36.

“The market is increasingly becoming concerned about the
situation in Japan and that high oil prices and high commodity
prices will eventually hurt economic growth,” said Mark Bronzo,
money manager at Security Global Investors in Irvington, New

The Dow Jones industrial average (.DJI: Quote, Profile, Research) was down 64.56
points, or 0.52 percent, at 12,316.55. The Standard & Poor’s
500 Index (.SPX: Quote, Profile, Research) was down 6.89 points, or 0.52 percent, at
1,317.57. The Nasdaq Composite Index (.IXIC: Quote, Profile, Research) was down 14.67
points, or 0.53 percent, at 2,756.84.

(Reporting by Angela Moon,Editing by Chizu Nomiyama)

US STOCKS-Wall St falls on Alcoa, Japan; miners sell off