国际地震动态Issue(11)：17-21,5.DOI:10.3969/j.issn.0235-4975.2016.11.006
2016年7月30日马里亚纳群岛M7.8地震震源机制解测定
Determination of the focal mechanism solution of the July 30th 2016 M7 .8 earthquake in Mariana Islands
杜广宝 1邹立晔 1梁姗姗 1徐志国2
作者信息
- 1. 中国地震台网中心，北京 100045
- 2. 国家海洋环境预报中心，北京 100081
- 折叠
摘要
Abstract
The rapid parameter determination of the July 30th 2016 M7.8 earthquake in Mariana Islands is introduced in this paper.And then,based on the data from the Global Seismograph Network (GSN ),the focal mechanism of this event is calculated with the W-Phase method.The best double-couple solution is:for the nodal plane Ⅰ,strike= 198.0°/dip= 35.7°/slip= 135.9°,while for the nodal plane Ⅱ,strike= 236.2°/dip= 66.0°/slip=62.7°;and the moment magnitude is MW7.72.This result is quite consistent with the ones from such international seismological institutions as the Global Centroid Moment Tensor (GCMT),all indicating that this earthquake is a subduction event of reverse faulting at an intermediate depth.关键词
马里亚纳地震/震源机制解/W-Phase方法Key words
Mariana earthquake/focal mechanism solution/W-Phase method分类
天文与地球科学引用本文复制引用
杜广宝,邹立晔,梁姗姗,徐志国..2016年7月30日马里亚纳群岛M7.8地震震源机制解测定[J].国际地震动态,2016,(11):17-21,5.
