2025年8月9日晚间，阿拉斯加特雷西峡湾（Tracy Arm）发生山体滑坡，引发海啸将海水冲上对面山壁1580英尺（约481米）高度1。这一海啸高度是有记录以来的第二高1。游客在完成该地区的拍摄活动后12小时内遭遇了这场灾难1。
研究人员通过阿拉斯加地震中心的数据发现，滑坡发生前存在多个预警信号1。在事件发生前的两个月内，当地冰川退缩超过三分之一英里，同时伴随持续降雨和数千次小型地震微颤1。随着阿拉斯加冰川的持续退缩，类似的山体滑坡和海啸灾害预计将成为北极沿海地区日益增加的威胁1。
A landslide in Tracy Arm fjord, Alaska, triggered a tsunami on August 9, 2025, that sent water surging 1,580 feet up the opposite mountainside, making it the second-highest tsunami ever recorded 1. The event occurred approximately 12 hours after tourists had completed their photography work in the area and evacuated 1.
Researchers from the Alaska Earthquake Center identified multiple warning signals that preceded the disaster, including rapid glacier retreat of more than one-third of a mile within two months, sustained rainfall, and thousands of small seismic tremors 1. These precursors underscore the growing hazard posed by similar events in Arctic coastal regions as glaciers continue to recede 1. The center had established a tiered warning system with yellow alerts for weather and glacier changes, orange alerts for increased seismic activity, and red alerts for active events 1.
评论
还没有评论，欢迎留下第一条。