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A database of damaging small-to-medium magnitude earthquakes
Journal of Seismology ( IF 1.6 ) Pub Date : 2020-01-09 , DOI: 10.1007/s10950-019-09897-0
Cecilia I. Nievas , Julian J. Bommer , Helen Crowley , Jan van Elk , Michail Ntinalexis , Marialuigia Sangirardi

Interest in small-to-medium magnitude earthquakes and their potential consequences has increased significantly in recent years, mostly due to the occurrence of some unusually damaging small events, the development of seismic risk assessment methodologies for existing building stock, and the recognition of the potential risk of induced seismicity. As part of a clear ongoing effort of the earthquake engineering community to develop knowledge on the risk posed by smaller events, a global database of earthquakes with moment magnitudes in the range from 4.0 to 5.5 for which damage and/or casualties have been reported has been compiled and is made publicly available. The two main purposes were to facilitate studies on the potential for earthquakes in this magnitude range to cause material damage and to carry out a statistical study to characterise the frequency with which earthquakes of this size cause damage and/or casualties (published separately). The present paper describes the data sources and process followed for the compilation of the database, while providing critical discussions on the challenges encountered and decisions made, which are of relevance for its interpretation and use. The geographic, temporal, and magnitude distributions of the 1958 earthquakes that make up the database are presented alongside the general statistics on damage and casualties, noting that these stem from a variety of sources of differing reliability. Despite its inherent limitations, we believe it is an important contribution to the understanding of the extent of the consequences that may arise from earthquakes in the magnitude range of study.

中文翻译:

破坏中小地震的数据库

近年来,对中小地震及其潜在后果的兴趣已大大增加,这主要是由于发生了一些异常破坏性的小事件,开发了针对现有建筑群的地震风险评估方法以及对潜在地震的认识诱发地震的风险。作为地震工程界正在不断努力的工作,以开发有关较小事件带来的风险的知识,全球地震数据库的矩量级在4.0到5.5之间,据报告已报告了破坏和/或人员伤亡,这是该地震工作的一部分。编译并公开提供。两个主要目的是促进对在此震级范围内造成物质破坏的地震可能性进行研究,并进行统计研究以表征此规模的地震造成震荡和/或人员伤亡的频率(单独出版)。本文描述了数据库编译所遵循的数据源和过程,同时就遇到的挑战和做出的决定进行了重要的讨论,这与数据库的解释和使用有关。构成数据库的1958年地震的地理,时间和震级分布与损失和人员伤亡的一般统计数据一起列出,并指出这些损失源于各种可靠性不同的来源。尽管有其固有的局限性,
更新日期:2020-01-09
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