The threat came soon after Kim declared he will consider the "highest level of hard-line countermeasure in history" against the U.S. in response to President Donald Trump's threat to destroy the North.
Kim's Foreign Minister Ri Yong-ho told reporters Pyongyang might now consider detonating a hydrogen bomb outside its territory.
Russian Foreign Minister Sergei Lavrov, in a thinly veiled swipe at the United States, has warned that "military hysteria" over North Korea's nuclear weapons program could lead to "disaster".
The news comes after President Trump announced increased economic sanctions against the country on Thursday.
The North Korean leader branded the President a "mentally deranged U.S. dotard" in a scathing speech delivered personally through state media.
Trump at a campaign rally in Alabama, mocked Kim by continuing to call him "Rocket Man" and "Little Rocket Man", reported the Hill.
The natural disaster was detected in Kilju county in North Hamgyong Province, where North Korea's known Punggyeri nuclear site is located, the official said.
MCEVERS: And he demeaned Trump's rhetoric, saying he was, quote, "surely a rogue and a gangster fond of playing with fire rather than a politician". "I will surely and definitely tame the mentally deranged United States dotard with fire".
"Through such a prolonged and arduous struggle, now we are finally only a few steps away from the final gate of completion of the state nuclear force", Ri told the annual gathering of world leaders.
In his sanctions announcement yesterday, Mr Trump stopped short of going after Pyongyang's biggest trading partner, China, praising as "tremendous" a move by its central bank ordering Chinese banks to stop doing business with North Korea.
Some analysts saw Kim's statement as a clear announcement that North Korea would ramp up its already brisk pace of weapons testing, which has included missiles meant to target USA forces throughout Asia and the US mainland.
Mr Trump's executive order expanded the Treasury Department's ability to target anyone conducting significant trade in goods, services or technology with North Korea, and to ban them from interacting with the United States financial system.
Previous quakes from North Korea have indicated nuclear tests by the reclusive state, the most recent earlier this month. In two July flight tests, those missiles showed potential capability to reach deep into the US mainland when perfected.
Price said Saturday that in the Trump administration's first eight months, he used private jets for only 11 trips. The health department defended the trips, saying Price's schedule was hard and his workdays long.
Fury fell to a majority points defeat at the Manchester Arena as he failed to win his first heavyweight world title . The WBO Heavyweight champ couldn't catch Hughie Fury's chin, but he's happy to still have the belt around his waist.
On the stimulus package, the CEA said, it is being worked out and an announcement will be made at an appropriate time. Arvind Subramanian will continue for one more year after completion of his 3 year tenure on 16th October, 2017".
President Trump has accused China of not putting enough pressure on Kim's regime to step back from its sabre-rattling. On Sept. 15, North Korea launched an intermediate-range missile that flew over Japan in its longest-ever flight.
General Assembly in the place of leader Aung San Suu Kyi , who a day earlier delivered a speech calling for patience. The home minister said that the government has extended aid to Bangladesh for the welfare of Rohingyas there.
He says North Korea is a case study of the failure to prevent rogue states from obtaining weapons of mass destruction. China was first to announce the seismic events and said the larger 3.4 magnitude quake was a " suspected explosion ".
The general secretary post was won by Arif Ahammed (ASJ) and the joint secretary post was won by Muhammed Ashique. The result of the vice president's election was held due to some dispute and it will be announced on Monday.
North Korean state media KCNA also published a round up of criticism of Trump's speech in Western and Russian media outlets. North Korea's foreign minister later said that could be a hydrogen bomb test in the Pacific Ocean if Kim orders it.
They will confront a City team who are top and have scored 11 goals in their past two league games alone, without reply. That could lead to corners in the first half as Palace try to clear their lines and are under constant pressure.
Barcelona put three goals past Girona
Girona succeeded in stopping Barcelona star Lionel Messi from scoring. If only it could have avoided its own net as well. Messi scored nine goals in the first five rounds.