Swiss National Bank raises willingness to counter franc's 'excessive' appreciation

* Central bank makes rare verbal intervention

* Franc rises to highest level versus euro since 2015

* Analyst does not expect bank to cut rates (Adds analyst comment in paragraphs 9 to 11)

By John Revill

ZURICH, March 2 (Reuters) - The Swiss National Bank said on Monday it was more willing to intervene in foreign currency markets after the conflict in the Middle East pushed the Swiss franc to its highest level against the euro in more than a decade. The euro dropped to 0.9037 francs in early trading, its lowest level since the franc shock of January 2015, as investors sought safe havens. It later trimmed some of those losses and was last at 0.906, down 0.32% on the day.

The development prompted the SNB to make a rare verbal intervention, signalling its intention to check the strengthening of the franc, whose appreciation could push inflation negative and hurt Swiss exporters.

"In view of international developments, our willingness to intervene in the foreign exchange market has increased," the central bank said in a statement.

"We are prepared to intervene in the foreign exchange market to counter a rapid and excessive appreciation of the Swiss franc, which jeopardises price stability in Switzerland," the SNB said.

MEMORIES OF 2015 AND 2016

The last time the SNB made such a statement was in 2016, after Britain's vote to leave the European Union triggered a spike in the franc.

The year before, the euro plunged 30% against the franc to a record low of 0.8500 francs, when the SNB scrapped its three-year cap on the Swiss currency's value against the euro, sending shockwaves through global currency markets.

The SNB declined to comment on Monday if it had already intervened in the foreign currency markets. Charlotte de Montpellier, senior economist at ING Bank, said the SNB's statement was a surprise but reflected the central bank's difficult situation. "They probably hope that by clearly stating their intentions and the seriousness of those intentions, this will have an effect on the franc," de Montpellier said. The SNB may also believe the United States, which is monitoring Switzerland for currency manipulation, may be more tolerant of Swiss currency interventions because of the crisis situation, she added.

Analysts said they expected the SNB to sell francs to slow the currency's appreciation, but would not take interest rates below the current 0% level.

"We could expect some interventions by the SNB to slow this movement, but we don't see the SNB defending a certain level and prevent the franc going below that," said UBS economist Alessandro Bee.

"They will want to take some momentum out of the move, but won't defend the 0.90 level, for example, because these strong inflows into the franc could reverse very quickly."

Bee said it was unclear how long the situation would last, so it did not make sense to take Swiss interest rates negative or other emergency measures.

"That would only be appropriate if there were long-term problems like a slowdown in the global economy or other central banks were cutting rates," Bee said.

"This spike in the franc is not a structural problem in the euro zone like what happened in 2011. It's down to geopolitics and risk aversion."

(Reporting by John Revill; Editing by Ludwig Burger, Muralikumar Anantharaman, Neil Fullick and Emelia Sithole-Matarise)