...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Earth, planets and space: EPS >Spatial distribution for moment tensor solutions of the 2003 Tokachi-oki earthquake (M_(JMA) = 8.0) and aftershocks
【24h】

Spatial distribution for moment tensor solutions of the 2003 Tokachi-oki earthquake (M_(JMA) = 8.0) and aftershocks

机译：2003年十胜冈地震（M_（JMA）= 8.0）和余震的矩张量解的空间分布

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The 2003 Tokachi-oki earthquake with Mw 7.9 is the largest interplate earthquake occurred ever since the high dense broadband seismometer network, the National Research Institute for Earth Science and Disaster Prevention (NIED) F-net, has been established over Japan. We determine the spatial distribution of moment tensor solutions and centroid depths of the mainshock and aftershocks. All aftershocks are divided to three groups: (1) the thrust fault type whose nodal plane is similar to the main shock; (2) the other thrust type with nodal plane different from the main shock; and (3) the normal fault type. The type (1) shows a depth distribution inclined to NW gently, coincident to the upper boundary of descending Pacific Plate. The active area of the type (1) does not overlap with the co-seismic slip area of the main shock at all. On the other hand, the type (2) shows no characteristic depth distribution with centroid depth scattered above and beneath the upper plate boundary. The type (3) are distributed, mainly, at about 40 km depth above the upper plate boundary. P axes of some aftershocks occurred above the plate boundary show the direction from ENE-WSW to ESE-WNW that suggests the effect of the Hidaka collision.
机译：自从在日本建立了高密度宽带地震计网络（国家地球科学与防灾研究院F-net）以来，2003年的7.9兆瓦十日冲木地震是最大的板间地震。我们确定了矩张量解的空间分布以及主震和余震的质心深度。所有余震均分为三类：（1）节点面与主震相似的逆冲断层类型; （2）节点平面与主冲击力不同的其他推力类型; （3）正常故障类型。类型（1）的深度分布平缓地向西北倾斜，与下降的太平洋板块的上边界重合。类型（1）的活动区域与主震的同震滑动区域完全不重叠。另一方面，类型（2）没有显示特征深度分布，质心深度散布在上板边界的上方和下方。类型（3）主要分布在上板块边界上方约40 km的深度处。在板块边界上方发生的一些余震的P轴显示了从ENE-WSW到ESE-WNW的方向，暗示了Hidaka碰撞的影响。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号