...
  • 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 >Outline of the 2011 off the pacific coast of tohoku earthquake (M _w 9.0) -earthquake early warning and observed seismic intensity
【24h】

Outline of the 2011 off the pacific coast of tohoku earthquake (M _w 9.0) -earthquake early warning and observed seismic intensity

机译：2011年东北太平洋沿岸地震概况（M _w 9.0）-地震预警和观察到的地震烈度

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 2011 off the Pacific coast of Tohoku Earthquake (M_w 9.0) that occurred on March 11, 2011, caused strong ground motion around northeastern Japan. Before the strong ground motion hit cities, the Japan Meteorological Agency (JMA) issued Earthquake Early Warning (EEW) announcements to the general public of the Tohoku district and then the warning was automatically broadcast through TV, radios and cellular phone mails. The EEW was earlier than the S wave arrival and more than 15 s earlier than the strong ground motion (intensity 5-lower or greater on the JMA scale) everywhere in the district. Seismic intensity 7 was observed for only the second time since JMA introduced instrument-based observation for intensity measurements in 1996. Intensities of 6-upper and 6-lower were widely observed at many stations in the Tohoku and Kanto districts, over an area of approximately 400 km × 100 km. The duration of strong ground motions was quite long. For the Tokyo region, JMA EEW expected intensities of 4, which was an underestimation of the observed intensity (5-upper). This underestimation can probably be attributed to the large extent of the fault rupture.
机译：2011年3月11日发生的2011年东北地震太平洋海岸（M_w 9.0）在日本东北部引起了强烈的地面运动。在强震袭击城市之前，日本气象厅（JMA）向东北地区的公众发布了地震预警（EEW）公告，然后该预警通过电视，广播和手机邮件自动广播。 EEW比S波到达早，比该地区各地的强地面运动（强度在JMA范围上低5或更大）早15 s以上。自从JMA于1996年引入基于仪器的强度测量观测以来，仅第二次观测到地震烈度7。在东北和关东地区的许多站点中，大约6处的上，下6处的强度被广泛观察到。 400公里×100公里强烈的地面运动持续时间很长。对于东京地区，JMA EEW预计强度为4，这是对观测强度的低估（5-较高）。这种低估可能是由于断层破裂的程度很大。

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