* Emerging assets extend falls as G20 optimism subsides
* Little regional impact seen from Moldovan unrest
* Ukraine debt spreads narrow sharply
By Catherine Bosley
LONDON, Apr 8 (Reuters) - Emerging market assets fell on Wednesday as investors reassessed their positions nearly a week after the G20's London summit gave risk appetite a boost.
Emerging stocks rallied for five days straight last week, buoyed by the G20 meeting that enlarged the coffers of the International Monetary Fund, but the rally has started to run out of steam.
"Markets are having a pause for breath," said Luis Costa, emerging debt strategist at Commerzbank.
"We have had a compression of spreads in the past week, and I'm reluctant to say this is a one-direction move. We are probably going to finish the day with wider spreads going into the Easter weekend."
The benchmark emerging stock index <.MSCIEF> fell 1.75 percent to 605.09 by 1015 GMT, its second straight session of losses.
Emerging sovereign debt spreads <11EMJ> widened 7 basis points to 584 bps over U.S. Treasuries, an indicator that risk aversion was growing.
Costa said the G20's new commitment to the IMF would help the debt of central European countries such as Ukraine, which has applied to the IMF for assistance.
"The market is coming to the conclusion that given the amount of multilateral support, it's going to be very difficult to see any Ukrainian sovereign or quasi-sovereign credit defaults."
Ukrainian debt spreads tightened by 63 bps on Wednesday, according to JPMorgan's EMBI+ index.
Costa said the Moldovan unrest, in which anti-government rioters ransacked parliament, was having little effect on markets.
Moldova's president accused the opposition -- which favours closer ties with the West -- of attempting a coup, after violent protests swept the capital of Europe's poorest country on Tuesday, leading to the arrest of 193 opposition leaders. [
]"People are trying to say this is some kind of Ukrainian Orange Revolution, which for us makes no kind of sense. The reaction in CIS countries so far has been muted," Costa said.
Equities in Bucharest <
> dropped 0.31 percent, recovering from early losses of more than 1.20 percent, while Hungarian shares < > dipped by 0.42 percent.South African stocks <.JTOPI> slipped by 1.12 percent, as the Johannesburg market priced in likely weak manufacturing data for February.
Bucking the trend, Polish shares <
> jumped 2.02 percent, while Turkey's index < > rose 0.74 percent. Moscow stocks < > rose 0.69 percent and equities in Prague < > gained 0.81 percent.DOLLAR, EURO UP
Worries about falling stock prices globally prompted investors to shun riskier assets such as South Africa's rand <ZAR=>, which dipped 0.69 percent against the dollar. It had hit a near 5-1/2 month high against the U.S. currency on Monday.
However, Merrill Lynch said the short-term outlook remained on the upside due to the G20's decision to boost IMF funding.
"The FX outlook has improved in the near term following the favourable outcome of the London G20 summit. (Eastern Europe) has much to gain from the serious boost of IMF resources, given the fact that most vulnerabilities are concentrated in the region."
Romania's leu was steady against the euro <EURRON=>, off recent three-month highs.
The forint <EURHUF=> fell 0.48 percent against the euro and the Turkish lira <TRY=> also fell 0.47 percent against the dollar, dropping from recent three-month highs.
(Editing by Ruth Pitchford)