North Korea Nuclear Test Causes magnitude 4.7 EarthquakeFEWW can confirm with 0.95 certainty that the magnitude 4.7 North Korea earthquake that occurred near Chongjin earlier today was caused by an underground nuclear test. Based on FEWW estimates, the NK nuclear test had a blast yield of about 12 kilotons (TNT equivalent), or 50TJ (50 x 10¹²J), almost similar to the first US atom bomb detonated above Hiroshima.
Earthquake Details
Magnitude: 4.7
Date-Time: Monday, May 25, 2009 at 00:54:43 UTC
Location: 41.331°N, 129.011°E
Depth: 0 km (~0 mile) set by location program [occurred at a shallow depth]
Region: NORTH KOREA
Distances:
