- Graphic: World FX rates in 2017 http://tmsnrt.rs/2egbfVh
- U.S. President Trump steps up rhetoric on North Korea
- Stocks' biggest weekly fall, VIX's biggest rise since Trump election
- Wall Street set for 4th drop, world losses top $1 trillion
- Dollar hits 2-month low vs yen ahead of July CPI data
- Yen and Swiss franc rise, gold holds Thursday's gains
- Oil retreats as oversupply concerns linger
The damage inflicted on world stocks this week by the escalating war of words over North Korea topped $1 trillion on Friday, as investors again took cover in the yen, the Swiss franc, gold and government bonds.
With the tense mood pushing European shares down for a third day and Wall Street set to fall again ESc1 , global stocks .WORLD were on course for their worst week since Donald Trump won November's U.S. presidential election.
Now installed in the White House, Trump issued a new warning to Pyongyang on Friday, tweeting: "Military solutions are now fully in place, locked and loaded, should North Korea act unwisely."
North Korea had responded to Trump's previous promise to unleash "fire and fury", with a threat to land a missile near the U.S. Pacific territory of Guam.
Japanese markets were closed for a holiday but the yen powered on, hitting an eight-week high of 108.91 yen to the dollar JPY= , adding to its biggest weekly gain since May.
The yen tends to benefit during times of geopolitical or financial stress as Japan is the world's biggest creditor nation and there is an assumption that Japanese investors there will repatriate funds should a crisis materialise.
The Swiss franc CHF= , the other traditional safety-play among currencies, has benefited too. Two weeks ago it saw its biggest weakly fall against the euro EURCHF= since the start of 2015. This week has seen its biggest rise since June 2016.
And in bond markets, 10-year U.S. Treasuries and Germany's ultra-safe government bonds, known as Bunds, were trading at their highest prices since June.
"We do just not know what happens next with the North Korea situation," said BNY Mellon FX strategist Neil Mellor.
"For quite some time the market hasn't really reacted to things on the Korean Peninsula because we know from the past it is largely North Korean sabre-rattling, and it may yet be. But with the rhetoric having gone to a different level, the market just can't afford to take that risk."
Many world stock markets have hit record or multi-year highs in recent weeks, leaving them vulnerable to a sell-off, and the tensions over North Korea have proved the trigger.
The CBOE Volatility Index .VIX , the most widely followed barometer of expected near-term U.S. stock market volatility, hit its highest mark since Nov. 8, when Trump was elected president.
The Chinese volatility gauge .VXFXI jumped by the most since January 2016, to its highest level in more than seven months. The euro zone's version .V2TX is at its highest since April, when France's election was rattling the region.
Overnight, MSCI's broadest index of Asia-Pacific shares outside Japan .MIAPJ0000PUS had skidded 1.55 percent, its biggest one-day loss since mid-December, to leave it down 2.5 percent for the week.
"What has changed this time is that the scary threats and war of words between the U.S. and North Korea have intensified to the point that markets can't ignore it," said Shane Oliver, head of investment strategy at AMP Capital in Sydney.
"Of course, it's all come at a time when share markets are due for a correction, so North Korea has provided a perfect trigger."
NEW CUBAN CRISIS? South Korea's KOSPI .KS11 fell 1.8 percent to an 11-1/2-week low, but its losses for the week are a relatively modest 3.2 percent. "Pretty remarkable, perhaps even extraordinary, considering," said Tim Ash, strategist at fund manager BlueBay.
The Korean won KRW=KFTC also continued to skid, down 0.45 percent to 1,147.2, falling below its 200-day moving average for the first time in a month.
Australian shares (xjo) were down 1.3 percent, set for a weekly loss of 0.6 percent and Chinese and Hong Kong bluechips lost 1.6 percent .CSI300 and 1.9 percent .HSI respectively.
A Chinese state-run newspaper said on Friday that China should make clear that it will stay neutral if North Korea launches an attack that threatens the United States, but that if the U.S. attacks first and tries to overthrow North Korea's government, China will prevent it doing so.
"This situation is beginning to develop into this generation's Cuban Missile crisis moment," ING's chief Asia economist Robert Carnell wrote in a note.
The market's backstop safety asset, gold XAU= , edged up to its latest two-month high of $1,288 an ounce. It soared over 2 percent in the previous two sessions, and is set for a weekly gain of 2.25 percent.
Crude futures meanwhile extended losses on fears of slowing demand and lingering concerns over global oversupply.
U.S. crude CLc1 was down 0.9 percent at $48.16 per barrel, on track for a weekly loss of 2.9 percent.
Global benchmark Brent LCOc1 also fell 0.9 percent to $51.44, after Thursday's 1.5 percent drop. It is poised to end the week down 1.9 percent. Copper, the bellwether industrial metal, was set for its first weekly drop in five weeks.
Away from the geopolitical drama, U.S. inflation data is due at 1330 GMT. The Korea tensions though have seen both U.S. and European markets this week push back expectations of when the Fed and ECB might hike interest rates.
For Reuters Live Markets blog on European and UK stock markets see reuter//realtime/verb=Open/url=http://emea1.apps.cp.extranet.thomsonreuters.biz/cms/?pageId=livemarkets<^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Fear and fury" costs global markets $1 trillion http://reut.rs/2fxcDUH^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^>
GLOBAL MARKETS-North Korea nuclear nerves wipe $1 trillion off world stocks
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