RESEARCH ON IDENTIFICATION OF SMALL EXPLOSIONS IN ANHUI AND ITS SURROUNDING AREA
-
摘要: 根据安徽测震台网记录的爆破与地震的数字资料,采用波谱分析方法,对该区域记录的小爆破与小震级地震事件计算纵横波拐角频率和卓越周期,试图获得爆破和地震识别的定量指标。对比研究波谱特征,发现爆破与地震的纵横波拐角频率和卓越周期等存在明显差异,为该地区小爆破的识别,提供了新的判据。最后,对爆破与地震其他方面的判据特征进行了总结。Abstract: Based on digital waveform data on Anhui seismic network, using wave spectrum analysis method, corner frequency and predominant period of P wave and S wave of small explosions and earthquakes records in Anhui and its surrounding area are calculated in order to get the identification quantitative index of explosions and earthquakes.Comparisons show that there is obvious difference between the corner frequency and predominant period of the explosions and that of the earthquakes, which is a new identification criterion of small explosions in Anhui.In addition, other criterion characteristics of explosions and earthquakes are also summarized in this paper.
-
Key words:
- corner frequency /
- predominant period /
- wave spectrum analysis /
- explosion /
- earthquake
-
[1] 赵永,刘卫红,高艳玲.北京地区地震、爆破和矿震的记录图识别[J].地震地磁观测与研究,1995,16(4):48-54. [2] 山长仑,张玲,李永红,等.爆破短周期面波的分析[J].地震地磁观测与研究,2001,22(6):43-48. [3] 张萍,蒋秀琴,苗春兰,等.爆破、矿震与地震的波谱差异[J].地震地磁观测与研究,2005,26(3):24-34. [4] 林伟,吴叔坤,陈杏.广东非天然地震的特征与识别[J].华南地震,2004,24(1):35-43. [5] 李雪英,高景春,刁桂苓,等.张北地震序列波谱分析[J].华北地震科学,2004,22(2):6-8. [6] 汪贵章,凌学书,张佑龙,等.安徽及周边爆破塌陷特殊地震动特征识别[J].防灾科技学院学报,2010,12(2):26-31. -
点击查看大图
计量
- 文章访问数: 1289
- HTML全文浏览量: 205
- PDF下载量: 133
下载:
