• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Seismological research letters >Fine Structure of the Subducting Slab and the 2022 M 7.4 Fukushima-Oki Intraslab Earthquake
【24h】

Fine Structure of the Subducting Slab and the 2022 M 7.4 Fukushima-Oki Intraslab Earthquake

机译：Fine Structure of the Subducting Slab and the 2022 M 7.4 Fukushima-Oki Intraslab Earthquake

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

摘要

The 16 March 2022 M 7.4 Fukushima-Oki earthquake is the largest one among forearc intraslab earthquakes in Japan since 2000. These subcoast events can cause severe dam-age to the local society because of their proximity to inhabited areas. However, their generating mechanism is still not clear. Here, we present 3D high-resolution seismic tomography of the source zone of four large intraslab events (M >= 7.0) during 2003-2022 in northeast Japan, which is obtained by inverting high-quality arrival-time data recorded at both onshore and offshore seismic stations. Aftershocks of the sub -coast intraslab earthquakes are mainly distributed in gaps of high-velocity bodies with high Poisson's ratio and at the upper similar to 20 km depth of the subducting Pacific slab. Our results indicate that the four large intraslab events were caused by rupturing of buried hydrated faults that formed at the outer rise and dehydration embrittlement on the fault planes.

著录项

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