North Korea appeared to carry out a sixth nuclear test Sunday, possibly of a hydrogen bomb more powerful than any device it has previously detonated, presenting President Donald Trump with an unprecedented challenge.
Monitors measured a 6.3-magnitude tremor near its main testing site, which South Korean experts reportedly said was nearly 10 times more powerful than the 10-kiloton test carried out a year ago.
The explosion came just hours after the North claimed to have developed a hydrogen bomb that could be loaded onto the country’s new intercontinental ballistic missile.
Hydrogen bombs or H-bombs — also known as thermonuclear devices — are far more powerful than the relatively simple atomic weapons the North was believed to have tested so far. Read More…