由于科学家们对洛基山脉东面的地震灾害有了更多的了解,因此,他们对缺少用以保护人民和财产免遭地震灾害的建筑设计规范条款越来越关心。哥伦比亚大学的拉蒙特-多尔蒂地质观象台的老科学家雅各布(Klaus Jacob)说,“除马萨诸塞州外,美国东部和中部的极少数州采用了抗震建筑规范。那就象未系安全带开车一样。”科学家和工程师们指出,尽管美国东部任何地方发生较大地震的可能性都很小,但历史资料表明,破坏性地震确实会发生,并预期会再发生。如果这些地震发生,其造成的经济影 As scientists learn more about the earthquake disaster to the east of the Rocky Mountains, they are increasingly concerned about the lack of provisions for the design of buildings designed to protect people and property from earthquakes. Klaus Jacob, an old scientist at the Lamont-Doherty Geological Observatory at Columbia University, said that “except for Massachusetts, a handful of states in the eastern and central parts of the United States have adopted seismic building codes, Drive the same. ”Scientists and engineers point out that despite the small likelihood of a major earthquake anywhere in the eastern United States, historic data suggests that devastating earthquakes do occur and are expected to recur. If these earthquakes happen, its economic impact