FOREX-Dollar surges on Trump's tariffs, sending peers to multi-year lows

Updates with US morning trade

By Hannah Lang and Kevin Buckland

NEW YORK/TOKYO, Feb 3 (Reuters) - The dollar surged on Monday, pushing its Canadian counterpart and the Mexican peso to multi-year lows, while China's yuan slumped to a record trough in offshore trade after U.S. President Donald Trump's tariffs kicked off a trade war.

The U.S. dollar's gains were broad, with the euro also touching a more than two-year low and the Swiss franc - despite typically acting as a safe haven - initially sliding to its weakest level since May.

As Trump promised last month, the U.S. slapped Canada and Mexico with 25% duties and China with a 10% levy during the weekend, calling them necessary to curb immigration and narcotics trafficking.

The tariffs are due to take effect at 12:01 a.m. EST (0501 GMT) on Tuesday.

"What it seems like the U.S. is trying to do is build its hegemonic power back and then force the rest of the world to pay for U.S. public goods, which is typically not how government works," said Mark McCormick, head of foreign exchange and emerging market strategy at TD Securities.

Canada and Mexico, the top two U.S. trading partners, immediately vowed retaliatory measures, and China said it would challenge Trump's levies at the World Trade Organization.

"The surprise for markets ... is that Canada and Mexico retaliated immediately and that others, i.e. China and the EU, may follow their lead, resulting in a sharp contraction in global trade," said Tony Sycamore, a market analyst at IG.

The tariffs are widely expected to push up U.S. inflation, supporting the dollar by keeping U.S. interest rates higher for longer.

Markets pared expectations of rate cuts from the Federal Reserve in the wake of the tariff news, with futures pricing in just a 50% chance of two cuts this year 0#USDIRPR.

The U.S. dollar advanced 0.23% to 7.3314 yuan in the offshore market CNH=D3, having earlier pushed to a record high of 7.3765 yuan. Markets in China remain closed for the Lunar New Year and will resume trading on Wednesday.

The Mexican peso MXN= fell to its lowest in nearly three years at 21.2882 per U.S. dollar and was last flat at 20.679, while the Canadian dollar CAD=D3 slumped to 1.462 per U.S. dollar, after earlier falling to a level not seen since 2003.

Canada's and Mexico's economies are at risk of recession, some analysts say, while the euro zone economy faces further stagnation if tariffs kick in.

The Australian dollar AUD=D3 hit a five-year low, while the New Zealand dollar NZD=D3 fell to its lowest since October 2022. The two Antipodean currencies are often used as liquid proxies for the Chinese yuan. AUD/

"Investors will be on tenterhooks to see whether any phone conversation today between President Trump and his counterparts in Canada and Mexico can yield any results in 24 hours," said Chris Turner, global head of markets at ING.

The euro EUR= plunged as much as 2.3% to $1.0125 - the lowest since November 2022 - as investors braced for tariffs on Europe from the Trump administration. The single currency was last down 0.62% against the dollar at $1.0298.

Trump said over the weekend that tariffs on the European Union would go ahead, but did not say when.

The greenback added as much as 1.1% to 0.9210 per Swiss franc CHF=EBS, the highest since last May, before trading at 0.9115 franc. Sterling GBP=D3 fell 0.14% to $1.2378.

Japan's yen JPY=EBS, conversely, was resilient, with the dollar sliding 0.4% against the yen to 154.6.

That left the dollar index =USD, .DXY, which measures the U.S. currency against six other units, at 108.87. It had touched a three-week high of 109.88 in early trading.

Bitcoin BTC= was at $98,255.3, sliding below $100,000 to its weakest in nearly three weeks.