"North Korea's reckless pursuit of nuclear weapons and ballistic missiles threatens the entire world with unthinkable loss of human life ... no nation on Earth has an interest in seeing this band of criminals arm itself with a nuclear weapon and missiles", said Trump.
Hours before Kim's statement, Trump announced stiffer new sanctions on North Korea as he met his South Korean and Japanese counterparts in NY.
North Korean Minister of Foreign Affairs Ri Yong Ho reportedly said the powerful open-water test would be one potential "highest-level" countermeasure against new sanctions imposed by the United States and China.
Not to be outdone, Trump responded to Kim's treats with those of his own.
Kim said he is "thinking hard" about his response and that he would "tame the mentally deranged U".
U.S. President Donald Trump's announcement that Beijing told its banks to stop dealing with North Korea is "not consistent with the facts", a Chinese foreign ministry spokesman said Friday, but he gave no indication what steps China might be taking.
North Korea has launched dozens of missiles this year, several of them flying over Japan, as it accelerates a weapons programme aimed at enabling it to target the United States with a nuclear-tipped missile.
The additional sanctions on Pyongyang, including on its shipping and trade networks, showed that Trump was giving more time for economic pressures to weigh on North Korea after warning about the possibility of military action on Tuesday.
Kim fires off insults at Trump and hints at weapons test
Beijing is also banning imports of textiles, one of Pyongyang's last major sources of foreign revenue. Security Council's resolutions in their entirety and fulfilled our due responsibility".
"But we're not in this alone", he added.
Mr Kim's personal response is believed to have been the first time in three generations of the Kim dynasty that a North Korean leader has read out a statement to the global community in their own name.
"It could be the most powerful detonation of an H-bomb in the Pacific", Ri explained. An official at South Korea's meteorological agency said they were analysing the tremor, which they put at magnitude 3.0, but the initial view was that it was a natural quake.
North Korea depends on China for nearly all its oil and gas but estimates of its consumption are low, leaving it unclear how Beijing's new limit will affect them.
"Japan will make every effort to protect the security of the Japanese people from cooperation with the US and South Korea", said Suga. China, responsible for about 90 percent of North Korea's trade, serves as the country's conduit to the global banking system.
If Pyongyang does decide to strike first, the lives of tens of millions of East Asians are on the line, including North Korean civilians and soldiers, who would probably only be used to conduct a Zerg rush on the Korean de-militarized zone.
The North Korean leader said in the statement that Mr Trump's harsh rhetoric had convinced him to break from that tradition.
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