这是一份关于美国地震监测系统的现状、需求和相关价值的评估报告。依据美国《公共法10 5 4 7》 ,本报告提出了美国国家地震监测系统的发展战略以及美国国家地震监测台网、区域地震监测台网和城市地震监测台网发展规划 ,在报告的编写过程中广泛地征求了各方面的意见。地震监测系统要及时、准确地为国家提供由于地震、海啸、火山喷发造成的人员和财产损失的信息 ,这些信息对于国家采取有效的措施减少地震造成的损失是极其重要的。美国需要建设一个综合化、现代化、标准化、稳定化的国家地震监测系统。现代化的地震监测系统可以提供 :·在几秒钟内对即将来临的强地面运动预警 ;·对地面振动的强度分布进行快速评估 ;·对海岸地震所产生的海啸预警 ;·火山喷发预警 ;·给出地震危险性评估信息 ,以改进建筑物设防标准 ;·给出地震期间建筑物响应的精确资料 ,为地震多发区工程建设服务。今天 ,美国有许多研究机构从事地震监测工作 ,而他们都面临着许多问题和挑战 ,设备老化、缺乏稳定长期的资金支持是最严重的问题。地震监测系统是基于一些分布不均匀的台网。台网的运行者考虑最多的是经费问题 ,而不是资料产出和资料服务 ,仪器设备的现代化进程缓慢。为了保证地震警报的发布 ,加快地震的快速响应和长期收集 This is an assessment of the status quo, needs and associated value of the U.S. earthquake monitoring system. According to the “Public Law 10 5 4 7” in the United States, this report presents the development strategy of the National Seismic Monitoring System of the United States and the development plans of the National Seismic Network, Regional Seismic Network and Urban Seismic Network in the United States. During the preparation of the report Various opinions were widely sought. Earthquake monitoring system to promptly and accurately provide the country due to earthquakes, tsunamis, volcano eruptions caused by the loss of property and property information, the information for the state to take effective measures to reduce the damage caused by the earthquake is extremely important. The United States needs to build a comprehensive, modern, standardized and stable national earthquake monitoring system. Modern seismic monitoring systems can provide: • Early warning of imminent strong ground motion within seconds; • Rapid assessment of ground-based intensity distributions; • Early warning of tsunamis caused by coastal earthquakes; • Early warning of volcanic eruptions; Earthquake hazard assessment information is given to improve the fortification standards for buildings; • Accurate information on building response during earthquakes is given to serve the engineering construction in areas prone to earthquakes. Today, many research institutes in the United States are engaged in earthquake monitoring. All of them face many problems and challenges. Aging equipment and the lack of stable long-term financial support are the most serious problems. Earthquake monitoring system is based on some unevenly distributed network. Network operators consider the most funding issues, rather than data output and information services, equipment, equipment, the modernization process is slow. In order to ensure the issuance of earthquake warnings, quick response and long-term collection of earthquakes are accelerated