(Adds analysts, background, updates prices)
By Jan Lopatka
PRAGUE, Aug 7 (Reuters) - The Czech central bank surprisingly cut interest rates by 25 basis points on Thursday, following warnings it could ease due to the strong crown, which is threatening to drive down inflation and also growth.
The cut, which brought the key repo rate to 3.50 percent, was the bank's first since April 2005. It followed eight hikes that accompanied several years of fast economic growth in the central European state and a pick up in prices.
Analysts polled by Reuters had expected rates to stay on hold [
], although traders said the money market had priced in the chance of a reduction.The crown weakened on the news to a new seven week low of 24.219 against the euro <EURCZK=>, versus 23.98 before the rates decision, before recovering to 24.17 at 1512 GMT.
The bank cut its prognosis for economic growth to 4.1 percent this year and 3.6 percent next, versus 4.7 and 4.0 previously.
Central bank Governor Zdenek Tuma said the crown was not the only factor behind slower growth, and he could not exclude another cut this year.
"It was confirmed that the Czech economy is in declining phase and after all the forecast shows that we now expect bigger dampening than the last time, which is quite clearly an anti-inflationary development," Tuma said.
The bank said the board voted 6-0 for the cut.
The bank's forecasts also indicated a slight rise in the inflation outlook to 2.5 percent at the end of next year. It had earlier seen it falling to 2.2 percent in the third quarter.
The cut put the Czechs at the vanguard of a potential return to policy easing in central and Eastern Europe, a region where most countries have been battling inflation caused by high commodity prices and economic growth.
It also pulled the Czech cost of borrowing further below the euro zone base rate, left at 4.25 percent on Thursday, and well below those of other central European countries.
"At levels (on the strong side of) 24.00, the crown represents a significant risk, which could trigger a hard-landing of the Czech economy with falling inflation and rising unemployment," said analysts at Komercni Banka, who had predicted the cut.
"Such risks should be avoided."
Komercni said a weaker crown would likely keep rates on hold for the foreseeable future but others, such as JP Morgan's Miroslav Plojhar, said the move was just the first in a series as the growth outlook in the whole region darkens.
CROWN THREAT
A strong currency pushes down import prices and hurts exporters, squashing inflation and growth forecasts.
"We are happy (for the cut). We were hoping that this would happen and our exporters were calling for this move," said Oldrich Koerner, deputy economic director at the Union of Industry and Transportation.
Backed by the strong economy as well as capital inflows seeking a safe haven amid the world financial turmoil, the crown firmed as much as 18.7 percent year-on-year against the euro <EURCZK=> to hit a record of 22.925 last month.
Several central bankers knocked it back with warnings they could cut rates on Thursday to prevent the unit from pushing inflation below target. The crown has since dipped 5 percent.
Tuma said a return of the crown to an appreciation trend would be a significant anti-inflationary risk but did not add to his sharp comments on crown strength last month.
"In my opinion, to a large extent the lowering of rates has already been reflected in the market so I do not believe that the lowering we decided on today should influence the exchange rate in any fundamental way in the coming weeks," he said. (For more analysts comments, click on [
] For HIGHLIGHTS from news conference, click on [ ] For c.bank forecasts click on [ ]) (Reporting by Jan Lopatka; Editing by Gerrard Raven)