Satellites such as Sentinel-1 (pictured) and ALOS-2 carry advanced synthetic aperture radars that can provide data that can be used to map changing land cover, ground deformation, ice shelves and glaciers. Dr Sreejith says they can also be used in detecting nuclear tests
Newsweek: North Korea's 2017 Nuclear Explosion Was Equivalent of 17 Hiroshima Bombs, Study Suggests
The nucler weapon detonated underground by North Korea in 2017 could have been 17 times as powerful as the "Little Boy" bomb dropped on the Japanese city of Hiroshima in 1945.
According to research recently published in the Geophysical Journal International, the North Korean blast released energy equivalent to 245 and 271 kilotons of TNT. In contrast, the "Little Boy" bomb that the U.S. deployed over Hiroshima contained a blast yield of 15 kilotons.
North Korea kick-started its nuclear program after withdrawing from the Treaty on the Non-Proliferation of Nuclear Weapons in 2003. The first of a series of nuclear tests took place three years later, in 2006, and culminated in the testing of what experts suspect was a hydrogen bomb on September 3, 2017.
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More News On Reports That North Korea's 2017 Nuclear Test Was The Equivalent To '17 Times The Size' Of Hiroshima
North Korea nuclear test equivalent to '17 times the size' of Hiroshima -- FOX News
North Korean Nuke Equivalent to ‘17 Hiroshimas’ According to Space-Based Radar -- SciTechDaily
A blast big enough to move a mountain! Space-based radar reveals the nuclear weapon tested by North Korea in 2017 was 17 TIMES more powerful than Hiroshima -- Daily Mail