* Yen rallies despite G7 warning on volatility
* Euro hits 2-year low vs dollar
* Traders say RBA continues Aussie dollar-buying in Europe (Recasts, adds quotes, updates prices, changes byline, dateline; previous LONDON)
By Gertrude Chavez-Dreyfuss
NEW YORK, Oct 27 (Reuters) - The U.S. dollar and yen rallied on Monday as plunging stock markets and fears of global recession prompted investors to abandon risky trades and seek shelter in those currencies.
The yen hovered near 13-year peaks against the dollar and rose to its highest since May 2002 versus the euro despite a statement of concern by finance officials from the Group of Seven major industrial nations about excessive volatility in the Japanese currency.
The G7 said it would continue to monitor markets closely, and cooperate as appropriate, raising prospects for a coordinated currency intervention. For more see [
]."This is a continuation of deleveraging and unwinding of risk that has been happening the past week and this has benefited the yen and the dollar," said Omer Esiner, senior market analyst at Ruesch International in Washington.
"The surge in the yen has raised the possibility of a Bank of Japan intervention. I would imagine the BoJ may come in if dollar/yen hits below 87 or 85 yen," he added.
The Japanese unit has surged as investors unwind carry trades, which use the low-yielding yen to buy everything from higher-yielding currencies to stocks and commodities. Such trades have collapsed in recent weeks as market players have been forced to sell assets to raise cash.
The dollar, which on Monday hit a fresh 2-1/2-year high versus the euro, was also a beneficiary of global deleveraging. Investors had used dollar-denominated loans to pump up investments elsewhere. When the crisis escalated over the summer, borrowers began calling in these loans, resulting in a scramble for dollars.
In early New York trading, the dollar <JPY=> was down 1.4 percent against the yen at 92.97 yen, pulling back after rising to about 94.48 yen after the G7 warning. On Friday the U.S. currency had slid to a 13-year low of 90.95, according to electronic trading platform EBS.
The euro was down 2.6 percent at 115.79 yen, after hitting a 6-1/2-year low of 113.62 yen <EURJPY=>, according to EBS. Against the dollar, the euro dropped more than 2 percent to a fresh 2-1/2-year low at $1.2335 <EUR=>.
Traders said the G7 warning seemed to have fallen on deaf ears as investors continued to snap up the Japanese currency while the Nikkei stock index <
> plunged over 6 percent."Traders who ignore the G7 words do so at their own risk as monetary authorities in the industrialized world are clearly becoming convinced that the FX markets may be the next crisis hot-spot that will require their attention," said Boris Schlossberg, director of research at GFT Forex in New York.
Japanese finance minister Shoichi Nakagawa said on Monday he was watching currencies with "great interest."
The Reserve Bank of Australia continued to intervene in the currency market, buying Aussie dollars for U.S. dollars in Europe on Monday, traders said. [
].The RBA confirmed it had intervened on Friday and in Asian trade earlier in the global session to stabilize the flagging Australian currency.
The Australian dollar fell to a 6-1/2-year low at US$0.6020. It was last down 2.4 percent to US$0.6079 <AUD=>. Against the yen, the Aussie fell 0.7 percent at 56.58 yen <AUDJPY=R> after sinking to 55.11 yen on Friday -- the lowest since it was allowed to trade freely in December 1983.
In other currencies, sterling fell more than 3 percent to $1.5433 <GBP=>. On Friday, it hit a six-year low at around $1.5265, according to Reuters data, as investors continued to unwind positions in many markets and boosted cash holdings in the greenback for investor redemptions. (Additional reporting by Veronica Brown in London; Editing by James Dalgleish)