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据1980年4月《空间世界》和1980年3月《电子新闻》报道:美国国家宇航局目前正在美国本土和太平洋地区使用七个激光卫星跟踪系统,它是一项连续的全球研究计划的一部分,这项计划是在今后十年内使用空间技术研究地壳内的应变积累并增加对地震成因的了解。目前正分别在美国东萨摩亚、马歇尔群岛和奥大利亚西部安装激光器,四个可移动激光器也正分别在美国的马萨诸塞州、加利福尼亚和得克萨斯州安装。可望在1980年10月能全部开始工作的这些
According to SpaceWorld, April 1980, and Electronic News, March 1980, NASA is currently using seven laser satellite tracking systems in the United States and in the Pacific as part of a continuous global research project , The plan is to use space technology in the next decade to study the accumulation of strain within the crust and to increase understanding of the causes of earthquakes. At present, lasers are being installed in Eastern Samoa, Marshall Islands, and western Austria, respectively, and four movable lasers are being installed in Massachusetts, California and Texas, respectively. These are all expected to start working in October 1980