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New Madrid Seismic Zone Catastrophic Earthquake Response Planning

机译：新马德里地震带灾难性地震响应规划

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摘要

The New Madrid seismic zone in the Central USA has experienced some of the strongestearthquake ground motions observed nationwide. The historic series of three earthquakes during 1811 and 1812 shook this Midwest region with magnitudes around 8. Theearthquakes were extensively reported. However, limited damage occurred because of the area was sparsely populated. A recurrence of the 1811 and 1812 earthquakes would cause widespread and severely impacts affecting over 45 million residents of the states surrounding the New Madrid seismic zone. A repeat of these historical events would subject the major urban center of Memphis, Tennessee to intense ground shaking while other urban centers such as St. Louis, Missouri, would experience less intense shaking. This does not indicate that St. Louis is less vulnerable, however. Though not undertaken in this report, subsequent work will include the examination of other hazard scenario within the region of interest. These scenarios will represent seismic activity in the Wabash Valley Seismic Zone of M7.1 as well as near St. Louis, Missouri, of M6.0.
机译：美国中部的新马德里地震带在全国范围内经历了一些强烈的地震地面运动。 1811年和1812年的三场地震的历史性系列震撼了中西部地区，震级约为8级。地震被广泛报道。但是，由于该地区人烟稀少，因此造成的破坏有限。 1811年和1812年地震的再次发生将造成广泛而严重的影响，影响到新马德里地震带周围各州的4500万居民。这些历史事件的重演将使田纳西州孟菲斯市的主要城市中心遭受强烈的地面震动，而密苏里州圣路易斯等其他城市中心将遭受较少的剧烈震动。但是，这并不表示圣路易斯不那么脆弱。尽管未在本报告中进行介绍，但后续工作将包括检查感兴趣区域内的其他危险情况。这些场景将代表M7.1的瓦巴什谷地震带以及M6.0的密苏里州圣路易斯附近的地震活动。

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