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美国加利福尼亚州南部是世界上地震最强烈的地区之一。美国地质调查所加利福尼亚分部的地震学家Ｌ．Ｍ．Ｊｏｎｅｓ和加利福尼亚工艺学院的Ｅ．Ｈａｕｋｓｏｎ不久前发表的假说似乎在某种程度上降低了潜在的危险性。他们在进行有关该区从１９４５年至今地震频率资料的统计...
Southern California is one of the most earthquake-stricken areas in the world. Seismologist L., Division of Geological Survey, California. M. Jones and E. Institute of Technology. The hypothesis Haugson recently published seems to have somewhat reduced the potential dangers. They are conducting statistics on the seismic frequency data of the area from 1945 to the present ...