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一项新的研究结果表明,一隐埋断层上的中等地震数小时后可能会在加州圣安德烈斯大断层上触发灾难性的“大地震”。美国地质调查局的地震学家琼斯(LucileJones)说,这一研究结果将由美国地质调查局的一个委员会进行审查,该委员会的职责是,如果科学家们探测到即将发生地震灾害的可能信号,则考虑是否发布公共警报。地质学家赫德纳特(Ken Hudnut)说,该研究结果表明,这个额外的小断层上的一次里氏约5.5级的中等地震就可能在圣安德烈斯断层上引起一次大至巨大的地震。该额外断层位于距圣迭戈东北140公里的英皮里尔河谷。琼斯说,这是一种合理的预测,也是加州下次大地震可能发生的几种可能机制之一。一次里氏5级的地震可在当地造成很大的破坏,6级地震会造成更严重的破坏。里氏7
A new study shows that a few hours after a moderate earthquake on a buried fault could trigger a catastrophic “big earthquake” on a large fault in San Andrés, California. Seismologist Lucile Jones of the United States Geological Survey said the findings will be reviewed by a committee of the US Geological Survey whose duty is to consider if scientists detect a possible signal of an imminent earthquake disaster Whether to issue public alerts. Geologist Ken Hudnut said the results of the study show that a medium-magnitude 5.5 earthquakes of about 5.5 on this extra, small fault can cause a large to huge San Andreas fault earthquake. The extra fault is located in the English Riviera, 140 kilometers northeast of San Diego. Jones said it is a reasonable prediction and one of several possible mechanisms that could occur during the next major earthquake in California. A magnitude 5 earthquake can cause great damage locally and a magnitude 6 earthquake can cause even more serious damage. Richter 7