A series of tremors and landslides near North Korea's nuclear test base likely mean the country's sixth and largest blast has destabilized the region, and the Punggye-ri nuclear site may not be used for much longer to test nuclear weapons, experts say.
The quake took place at 16.41 UTC (5.41am NZT) at a depth of 5km, the US Geological Survey reported.
"The event has quake like characteristics, however, we can not conclusively confirm at this time the nature (natural or man-made) of the event", it said.
It was the latest in a string of aftershocks following North Korea's sixth nuclear test on September 3, which caused a 6.3 magnitude quake, according to the USGS. The administration added: "It is believed to have caused no damage".
The last time a weapon was detonated at the site, a magnitude-6.3 quake was detected.Читайте также: Notable Two Hundred Day Moving Average Cross - MGM
September's nuclear test was so strong that it shook buildings in Russian Federation and China and was described as a "perfect success" by North Korea's state-run media.
Experts say the small quakes that occurred after the test may have been linked to the nuclear detonation, with some suggesting a possible increase of geological stress in the area.
These disturbances are more numerous and widespread than seen after any of the North's previous tests, 38 North has said. In 2006, North Korea's first detonation triggered a 4.1-magnitude quake.
Tensions between North Korea and western powers have escalated in recent months, with North Korean leader Kim Jong Un threatening the United States, in particular, with war.
In response to Trump's speech, Kim rebuked him, calling Trump "mentally deranged" and threatened the "highest level of hard-line countermeasure in history".При любом использовании материалов сайта и дочерних проектов, гиперссылка на обязательна.
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