摘要
利用地震学方法估算爆破当量,一直以来都是地震学研究的难点之一。影响当量估算的因素很多,如震源特征、事件埋深、传播路径、能量衰减、地壳结构的不均匀性,等等。想要精确估算特定事件的当量,除了要克服以上各种困难外,还需选择合适的当量经验公式。当量与事件所释放的能量直接相关,震级在一定程度上可以反映能量的大小。目前使用的当量估算公式主要是震级-当量关系公式,其中,有利用体波震级、面波震级以及尾波估算当量的,各有利弊。本文的主要目的是总结目前存在的当量估算公式,并对其影响因素做简单分析。重点描述地下核试验当量估算,汇总了历次朝鲜核试验的信息。
Yield estimation of explosions using seismic methods is always a difficult problem in seismology. There are many factors that can affect the result of yield estimation such as source characteristics,depth of burial,propagation path,attenuation,variation of the crustal structure and so on. An accurate yield estimation needs a suitable relationship which is always empirical and must solve the problems mentioned above. Yield is directly related to the power released by the events that somewhat can be expressed with magnitude. Magnitude-yield estimation relationship is commonly used in yield estimation including body-wave magnitude,surface-wave magnitude and coda wave magnitude,each has its advantages and disadvantages. The main purpose of the paper is to summarize the existing yield estimation relationships and make a simple analysis on interference factors. We focus on the description of underground nuclear explosions' yield and summarize the information of North Korea underground nuclear explosions.
出处
《国际地震动态》
2018年第2期9-25,共17页
Recent Developments in World Seismology
基金
监测领域基金项目(2200404)资助
关键词
当量估算
震级一当量估算公式
地下核爆破
Yield estimation
magnitude-yield estimation relationship
underground nuclear explosion
作者简介
通信作者：孔韩东,e-mail：khddota@163.com.
