US Treasury Secretary Steven Mnuchin told a conference earlier that if China did not follow through on the new sanctions, "we will put additional sanctions on them and prevent them from accessing the US and global dollar system".
President Donald Trump said on Tuesday the latest United Nations sanctions on North Korea were only a very small step and nothing compared to what would have to happen to deal with the country's nuclear program.
Japanese Prime Minister Shinzo Abe also welcomed the new sanctions.
"It is important to put an unprecedented level of pressure on North Korea to make it change its policies", Abe said.
But the US hit back with US Ambassador to the United Nations Nikki Haley saying: "We don't take pleasure in further strengthening sanctions today".
"The world has received North Korea's latest message loud and clear: this regime has signaled its contempt for its neighbors, for all members of the United Nations, and for minimum standards of acceptable worldwide behavior", Trump said in the August 29 written statement. The test was recorded as a 6.3-magnitude natural disaster.
But these measures fall short of the stronger sanctions the USA called for after the Pyonyang regime detonated its sixth and most powerful nuclear device last week.
"The North Korean regime has not yet passed the point of no return", she added.
Dr Cheong Seong Chang of the Sejong Institute think-tank said the move will not have a huge impact on the North's military as crude oil supply remains the same. Haley called oil the "life blood" of the nation's effort to develop a nuclear weapon. For example, they restrict the amount of money that North Korean workers can go and earn overseas and send back to the North Korean regime.
U.S. seeks to freeze assets of North Korea's Kim Jong
Seoul estimated the blast's yield at 50 kilotons, more than three times the size of the bomb detonated over Hiroshima in 1945. Earlier, Prime Minister Shinzo Abe spoke with President Donald Trump and Russian leader Vladimir Putin .
The resolution also targets sources of income.
The textile ban is significant.
North Korea often marks big anniversaries every five years with giant public celebrations. The new draft resolution initially imposed a complete ban on the hiring and payment of North Korean laborers overseas.
Nauert insisted that North Korea's nuclear test last weekend, its most powerful to date, did not show that diplomacy was failing.
The United States had sought stronger measures against North Korea.
During tough negotiations, the United States dropped initial demands for a full oil embargo and a freeze on the foreign assets of North Korean leader Kim Jong-Un in a bid to win support from China and Russian Federation.
When the increased sanctions were finalized last Monday, a foreign ministry spokesman from North Korea sent out a threat to the United States after pointing out that the White House is manipulating the Security Council over their "legitimate self-defensive measures".
Both countries say that discussions are the only way to solve the North Korean issue.
CHINA'S OFFICIAL XINHUA NEWS AGENCY, in a commentary. "It could also trigger a nuclear domino effect in Northeast Asia". Japan, South Korea, and Guam, which are all USA allies, are within striking distance of North Korea.
Grant Newsham is a researcher with the Japan Forum for Strategic Studies in Tokyo. Aggravating the matter was the North Korean government's own pronouncement that their missiles were capable of reaching US shores. That could be a sign of increased enforcement of existing sanctions. According to the latest report filed by The Guardian, the USA has considerably softened on the demands and the sanctions it wants to issue against Pyongyang-the same ones which had triggered another threat from the latter. Write to us in the Comments section, and visit our Facebook page.