Geologists say N. Korea’s nuclear test site likely collapsed
The findings by the scientists at the
The results also support some of the findings of an earlier study by another group of Chinese researchers that was published last month by the journal Geophysical Research Letters.
Nuclear explosions release enormous amounts of heat and energy, and the North's largest test in September was believed early on to have rendered the site in northeastern
Chinese authorities have said they've detected no radiation risk from samples collected along the border. Calls to those departments were not immediately answered on Thursday.
The data in the latest Chinese study was collected following the most powerful of
The
"In view of the research finding that the
The study is peer-reviewed and has been accepted for publication by the journal Geophysical Research Letters.
The Chinese study makes sense and is based on well understood research, said
A study published last month by the journal, authored by a team led by
North Korean nuclear tests have caused seismic events in Chinese border towns and cities, forcing evacuations of schools and offices, sparking fears of wind-born radiation and leading to a backlash among some Chinese against their country's unpredictable traditional ally.
Ties between the sides have been deteriorating for years, although Kim made a long-anticipated visit to
The quakes that followed the September test were not man-made and didn't appear to cause any damage in the area. The region isn't one where earthquakes naturally occur and no quakes were detected after the five smaller nuclear tests
On Saturday,
However, the North stopped short of suggesting it will give up its nuclear weapons or scale back its production of missiles and their related components.
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