SEOUL (The Korea Herald/ANN): The Seoul Metropolitan Government announced on April 27 that it will introduce a ground subsidence monitoring network to prevent further sinkhole accidents.
Safety accidents involving sinkholes have drawn attention recently, after a 20-meter-wide and 18-meter-deep sinkhole formed in Gangdong-gu, eastern Seoul, on March 24, swallowing a motorcyclist who was declared dead the day after.
