The Cheonan sank close to the disputed sea boundary between North and South Korean territorial waters, along which the two navies have clashed a number of times in the past decade. South Korea has lifted the stern of the 1,200-tonne Cheonan, a corvette, which went down near a disputed sea area with North Korea, and experts are examining the wreckage. ROKS "Cheonan" was split apart and sunk due to a shockwave and bubble effect produced by an underwater torpedo explosion. Hahh! A documentary about unknown story behind the mysterious sinking of the warship. The statement on this incident, officially titled "Investigation Result on the Sinking of ROKS 'Cheonan'," was produced by an investigative team called "The Joint Civilian-Military Group" (Hereafter, "JIG" is used to describe the JIG statement, document, team and investigation). You must be kidding me! Sinking of ROKS Cheonan Main article: ROKS Cheonan sinking At 21:21:57 (12:21:57 UTC) of 26 March 2010, an explosion (or two explosions) occurred for 1~2 seconds at the stern of ROKS Cheonan , causing a power stoppage and inflow of oil and seawater, and the ship heeled 90 degrees to â¦ The area where the Cheonan sinking incident happened has always been a site of considerable tension between South Korea and North Korea. Result! (CNN)-- South Korea's final report on the March sinking of the warship Cheonan reaffirms that a North Korean torpedo sent the ship to the bottom of the Yellow Sea, killing 46 sailors. âThe Sinking of ROKS Cheonanâ by Brett Witthoeft On 26 March 2010, an explosion occurred near the stern of ROKS Cheonan , a South Korean Pohang-class corvette, approximately one nautical mile southwest of Baengnyeong Island in the Yellow Sea, west of the Northern Limiting Line (NLL), the de facto maritime boundary dividing the Koreas. The explosion occurred approximately 3m left of the center of the gas turbine room, at a depth of about 6~9m. Result? Seoul-basedSailors and Marines from the U.S. and Republic of Korea (ROK)participated in a remembrance service March 24 to honor the KoreanSailors lost during the sinking of ROKS Cheonan (PCC-772) five yearsago.The 1,200-ton ship broke into two from an, summarize Influence to South North relationship: -A South Korean navy ship sank (name Cheonan ) on March 26th, 2010 -near Baengnyeong Island in Yellow sea -104 crew on board, 46 was killed and 56 personnel wounded -This incident would The (4) âInvestigation Result on the Sinking of ROKS âCheonanâ,â Ministry of National Defense, Republic of Korea, May 20, 2010. Cheonan Sinking Background: South Korea and North Korea experienced a four-month crisis over the sinking of the ROKS Cheonan on 26 March 2010.