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美国《地震情报通报》杂志1978年1～2月第10卷第1期登载了美加州理工学院地震实验室主任艾伦(Clarence K.Allen)的题为《第四纪地质——估计地震活动性的基本线索》的文章,这是他在该院地质和行星科学学部的一个报告稿件。作者在文中说:地质资料,特别是晚期的第四纪的地质资料是一种估计地震活动性及其有关的地震危险程度非常有价值的手段。这仅仅是因为,只要地质学家研究一下最近的地质时代,就能克服
In the January-February issue of Volume 1, Issue 1, January 1978, the United States of America, “Earthquake Intelligence Bulletin,” published an article entitled “Quaternary Geology-Estimated Earthquake Activity,” by Clarence K. Allen, director of the Seismic Laboratory at the American Institute of Technology. Basic Clues to Sex, "a manuscript of his report to the Faculty of Geology and Planetary Science at the institute. In the article, the author states: Geological data, especially the late Quaternary geological data, are a valuable tool for estimating the degree of seismicity and its associated seismic hazard. This is simply because as long as geologists study the recent geologic age, they can overcome it