Partial Support of the International Seismological Centre

这笔赠款在2006-2010年的四年期间为国际地震中心(ISC)的运作提供了新的部分支持。近40年来，ISC一直保持着地震震中、震级、力矩和其他震源参数的全球摘要(ISC公告)，以及3.5级地震的到达时间、幅度和其他相位测量以及地震台阵处理参数。《ISC公报》有硬拷贝，可通过光盘获得，现在还可通过网络访问。在编写本报告时，ISC数据库包含超过34 GB的信息，通常在一个月内，ISC收到超过3500个事件以及来自150,000多个地震记录的相关数据。NSF的资金约占与ISC相关的估计年度运营和维护成本的22%。ISC支持的任务包括：1)分析震中、震相读数和相关数据，包括2004年5月至2008年4月48个月期间发生的事件的宏观地震报告；2)在ISC公报中分发分析结果的硬拷贝、光盘和通过ISC网站提供的分析结果；3)维护国际地震台登记册；4)汇编有关地震机构和地震学家的信息，并通过ISC网站提供与实时地震和海啸数据中心的链接。世界各地的研究人员依赖ISC公报作为地震和地震事件震中的综合目录。因此，ISC间接支持地震学、地震物理学和构造学方面的国际研究。国际地球物理中心的活动代表着通过开放获得国际地球物理中心公报，在地球物理研究方面的全球合作。利用公报数据进行的研究对减轻地震灾害和监测《全面禁止核试验条约》具有广泛的影响。ISC从全球、区域和地方地震台网收集数据。如果不是通过这个独立的、总部设在英国的非政府机构，美国地震学家将无法访问来自一些国家网络的数据集。

0548649ShapiraThis grant provides renewed partial support of operations of the International Seismological Center (ISC) over the four year period 2006-2010. For almost 40 years, the ISC has maintained a global summary (the ISC Bulletin) of earthquake hypocenters, magnitudes, moments and other hypocentral parameters, as well as arrival times, amplitudes and other phase measurements along with seismic array processing parameters for events of M 3.5. The ISC Bulletin is available in hard copy, via CD-ROM and is now also web accessible. At the time of writing, the ISC database contained more than 34 Gb of information and in a typical month the ISC receives more than 3500 events with associated data from over 150,000 seismic recordings. NSF funding represents approximately 22% of the estimated annual operations and maintenance costs associated with the ISC. ISC tasks supported include: 1) analysis of hypocenters, phase readings, and related data including macroseismic reports for events from the 48 months period 2004 May - 2008 April; 2) distribution of the results from analysis in the Bulletin of the ISC in hard copy, CD-ROM and via the ISC web site; 3) maintenance of the International Registry of Seismic Stations; and 4) compilation of information about seismological institutions and seismologists and links to real-time earthquake and tsunami data centers available via the ISC web site. Researchers worldwide rely on the ISC Bulletin as the comprehensive catalog of earthquake and seismic event hypocenters. As a result the ISC indirectly supports international research in seismology, earthquake physics and tectonics. ISC activities represent a worldwide collaboration in geophysical research through the open availability of the ISC Bulletin. Research facilitated by use of Bulletin data has broad impact for earthquake hazards mitigation and for monitoring of the Comprehensive Test Ban Treaty. The ISC collects data from global, regional and local seismic networks worldwide. Data sets from some country networks would otherwise be inaccessible to U.S. seismologists if not through this independent, UK-based non-governmental institution.