爆炸当量是评估爆炸能量的重要参数，快速估算爆炸当量对于有效开展应急救援工作至关重要。收集攀枝花铁矿爆破、宁夏煤矿爆破、河南汝阳钼矿爆破等矿山爆破资料，得到爆破的地方性震级ML与爆炸当量Y之间的经验关系，并据此估算2019年7月19日河南省三门峡市气化厂爆炸事故的爆炸当量为16 t左右。
Explosion equivalent is an important parameter for evaluating explosion energy. Quick estimation of explosion equivalent is very important for effective emergency rescue work. In this paper, the blasting data of Panzhihua Iron Mine, Ningxia Coal Mine and Ruyang Molybdenum Mine in Henan Province are collected. The empirical relationship between the local magnitude ML and the explosion equivalent Y of underground blasting and ground blasting is obtained. The estimated explosion equivalent of the explosion accident at Sanmenxia Gasification Plant in Henan Province on July 19, 2019 is about 16 tons.
2019,40(4): 1-7 收稿日期：2019-08-05
DOI：10.3969/j.issn.1003-3246.2019.04.001
基金项目：2018年中国地震局地球物理研究所基本业务费专项（项目编号：DQJB18B04）：能量震级测定方法研究；2019年中国地震局地震监测业务项目：非天然地震事件速报
作者简介：刘瑞丰(1962-),男,研究员,主要从事数字地震资料分析处理、地震震级测定等研究工作
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