"It seems as if Captain Marvel herself ... punched the planet and put a dent into it," scientist Arthur Trembanis said.
Will they, won't they? The meeting between U.S. President Donald Trump and North Korean leader Kim Jong Un is "moving along very nicely."
Defectors claim that 80 percent of trees planted near the test site die, that underground wells have been evaporated and that babies in the region are born with birth defects at alarming rates.
"We decided to release the manga after hearing from our residents that the current manual is hard to understand," a Hokkaido official said.
Analysts say North Korea may have to move on to other tunnel testing sites or build new ones.
Sunday's test was detected by the U.S.-developed THAAD anti-missile system, despite much controversy surrounding its installation last month.
The country has carried out five nuclear tests in defiance of U.N. Security Council resolutions.
South Koreans 'not really afraid' of North's tests after years of aggressive provocations.
Pyongyang wants the U.S. to halt its military exercises with South Korea in return.
Washington rejected the proposal as a veiled threat.