Test Site Location
According to initial reports from South Korean government sources, the test was carried out at a mountain in Musadan-ri in Hwadae-kun, near the city of Kilchu, in North Hamgyŏng province on the northeast coast. However, later reports from the state National Intelligence Service identified the site as being a place in Sangpyong-ri, about 15 km from the coastal city of Kimchaek and about 50 km west of Musadan-ri.
The Korea Institute of Geoscience and Mineral Resources reported seismic waves measuring 3.58 on the Richter scale. The United States Geological Survey reported that a seismic event occurred at 01:35:28 UTC (10:35:28 am local time, UTC+9) on October 9, 2006 and measured 4.3 on the Richter scale. It occurred at the geographic coordinates 41°17′38.4″N 129°08′2.4″E / 41.294°N 129.134°E / 41.294; 129.134 with a horizontal location uncertainty of ±9.6 km (6.0 miles). This is 73 km (45 mi) north of Kimchaek, 90 km (56 mi) southwest of Chongjin, 180 km (110 mi) south of Yanji, and 385 km (239 mi) northeast of Pyongyang.
Read more about this topic: 2006 North Korean Nuclear Test
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