North Korean leader Kim Jong Un guides the launch of a Hwasong-12 missile in this undated photo released by North Korea's Korean Central News Agency (KCNA) on September 16, 2017. So as of now we are categorizing this as a natural earthquake." All of North Korea's previous six nuclear tests registered as earthquakes of magnitude 4.3 or above. North Korean leader Kim Jong Un watches the launch of a Hwasong-12 missile in this undated photo released by North Korea's Korean Central News Agency (KCNA) on September 16, 2017. U.S. President Donald Trump and North Korean leader Kim Jong Un have traded threats in recent daysU.S. President Donald Trump called the North Korean leader a "madman" on Friday, a day after Kim dubbed him a "mentally deranged U.S. dotard" who would face the "highest level of hard-line countermeasure in history."

Source: Huffington Post September 23, 2017 10:30 UTC