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1989年5月23日,在新西兰西南部海底发生一次强烈地震。该震至少是12年来在地球上发生的最大的一次地震。震后仅6个小时,地震学家们就已绘制出了引起这次地震的断层破裂的图像。哈佛大学的杰旺斯基(Adam M.Dzi-wonski)说:“这是地震学新纪元开端的特点,”“我们不但能够近乎实时地确定地震的位置(这项工作已进行很长时间了),而且还能近乎实时地确定地震的成因和类型。”这次地震发生在距新西兰约500英里的麦夸里海岭,震级为里氏8.2—8.3。美国地质调查局国家地震情报中心的普雷斯格雷夫(BruceW.Presgrave)说:“这是一次非常大的地震,
On May 23, 1989, a massive earthquake struck the seabed in southwestern New Zealand. The quake is at least the largest earthquake on Earth in 12 years. Only six hours after the earthquake, seismologists have mapped the fault that caused the earthquake. Adam M. Dzi-wonski of Harvard University said: “This is the beginning of a new era in seismology.” “Not only has we been able to determine the location of the earthquake in near real time (which has been going on for a long time) But also determine the causes and types of earthquakes in near real time. ”The quake took place in the Macquarie Ridge, about 500 miles from New Zealand, with a magnitude of 8.2-8.3. “This is a very large earthquake,” said Bruce W. Presgrave, director of the National Seismological Information Center at the United States Geological Survey.