尼泊尔一侧发生泥石流灾害，波及中尼边境西藏日喀则市吉隆县吉隆口岸 2。有报道称灾害发生于2026年8月26日 1，另有报道指出发生于2024年8月26日 2。灾害导致中国一侧通往吉隆口岸的道路、通信、电力全部中断 12。截至当晚8时，该灾害已造成至少3人遇难、265人失联 2。
灾害发生后，西藏自治区应急管理厅调派152辆车、792人赶赴事发地点开展应急救援 2。西藏消防救援总队出动72辆车、431名消防救援人员，并携带搜救犬、生命探测仪、冲锋舟等设备前往现场 2。中国国家主席习近平对此作出指示，要求千方百计搜救失联人员，转移安置受威胁群众，抓紧救治伤员，最大限度减少人员伤亡，并加强监测预警防止次生灾害 2。
吉隆沟全长约93公里，落差超过2400米，位于喜马拉雅南麓断层带 1。友谊桥上游流域分布着55个冰湖，总面积约3.39平方公里 1。2015年4月25日，尼泊尔博克拉市发生8.1级大地震，震源深度20公里，震中距吉隆镇直线距离约43公里 1。分析指出，该地震震松了山体，叠加冰川退缩形成的冰湖溃决风险与季风暴雨，构成了灾害链，使这一通道长期面临地质风险 1。此前在2025年7月8日，吉隆沟曾发生特大山洪泥石流，造成17名中方人员失联、中尼友谊桥被冲毁，口岸通关停摆近半年 1。
吉隆口岸是中尼重要贸易通道，2024年该口岸监管进出口货物贸易额达42.48亿元人民币，占中尼贸易总额近三成 1。在经历2025年的特大灾害后，临时钢架桥于2026年1月1日竣工，口岸得以恢复通行 1。
A debris flow originating from the Nepal side has struck the Gyirong Port area in Gyirong County, Shigatse City, Tibet, causing casualties and severe infrastructure disruption 2. China News reported the incident occurred on August 26, 2026 1, while CNA Mainland stated it took place on August 26, 2024 2. As of 8:00 p.m. on the day of the event, the disaster had claimed at least three lives and left 265 people missing 2. Consequently, roads, communications, and power supplies on the Chinese side leading to the port were completely cut off 12.
In response to the emergency, the Tibet Autonomous Region Emergency Management Department dispatched 152 vehicles and 792 personnel to the affected area for rescue operations 2. Additionally, the Tibet Fire and Rescue Corps deployed 72 vehicles and 431 fire and rescue personnel, bringing specialized equipment including search-and-rescue dogs, life detectors, and assault boats 2. Chinese President Xi Jinping issued directives demanding exhaustive efforts to search for the missing, relocate and resettle threatened residents, treat the injured promptly, and minimize casualties, while also emphasizing the need to strengthen monitoring and early warning systems to prevent secondary disasters 2.
The region faces long-term geological risks due to its topography and seismic history 1. The Gyirong Valley stretches approximately 93 kilometers with an elevation drop exceeding 2,400 meters, and is situated on the fault zone of the southern Himalayas 1. An 8.1-magnitude earthquake in Pokhara, Nepal, on April 25, 2015, with a focal depth of 20 kilometers and an epicenter about 43 kilometers in a straight line from Gyirong Town, significantly loosened the mountain bodies 1. This structural vulnerability, compounded by the risk of glacial lake outburst floods from 55 glacial lakes covering a total area of approximately 3.39 square kilometers upstream of the Friendship Bridge and intense monsoon rainstorms, creates a complex disaster chain 1.
This event marks another severe interruption for the vital trade corridor within just over a year 1. A massive flash flood and debris flow on July 8, 2025, previously left 17 Chinese personnel missing and destroyed the China-Nepal Friendship Bridge, halting port clearance operations for nearly half a year 1. Although a temporary steel bridge was completed on January 1, 2026, to restore passage 1, the port remains a critical hub, having handled 4.248 billion RMB in supervised import and export cargo trade in 2024, accounting for nearly 30% of the total China-Nepal trade volume 1.
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