动车行驶过程中“抖”得厉害！12306回复：山路轨道或存石子，不影响安全

Core Points - A video was shared online showing a high-speed train shaking unexpectedly during its journey, raising concerns about passenger safety [3] - The train in question is identified as D1039, operating from Qinghe Station to Yuncheng North Station [3] Group 1 - The shaking of the train is attributed to the presence of small stones on the tracks, particularly in mountainous areas where the train operates [6] - Customer service from 12306 confirmed that the shaking does not pose a safety risk to the train [6] - All high-speed trains undergo thorough inspections before departure to ensure compliance with safety standards [6]