Estimation of source parameters of Chamoli Earthquake, India

Journal of Earth system science

R Dharmaraju1¹  P K S Chauhan1¹  Y Pandey1¹ 

[1] Central Building Research Institute, Roorkee 247667, India.$$

关键词: Chamoli earthquake;    strong motion accelerograph;    seismic moment;    source radius;    stress drop;    moment magnitude.;   

DOI  :  

学科分类：天文学(综合)

来源: Indian Academy of Sciences

【 摘 要 】

The devastating earthquake (mb = 6.6) at Chamoli, Garhwal Himalaya, which occurred in the morning hours on 29th March 1999, was recorded on Delhi Strong Motion Accelerograph (DSMA) Network operated by the Central Building Research Institute, Roorkee. In this paper the source parameters of this event calculated from the Strong Motion Data are presented. The seismic moment for this event has been found to be of the order of 1025 dyne.cm and the moment mag- nitude has been calculated in the range of 6.53-6.69 at different stations. The stress drop and source radius for the earthquake are also calculated.

【 授权许可】

Unknown