Scholarlink

<p>This study analyzed data from the DEMETER satellite, collected 10 days before the Wenchuan <i>M</i><sub>s</sub>8.0 earthquake on May 12, 2008. The time-frequency power spectrum of the data indicated a narrow-band radiative destabilization (below the cut-off frequency) 6 days prior to the earthquake. A significant anomaly in the <i>E</i><sub><i>z</i></sub> component was observed 3 days before the event. However, similar phenomena were found over aseismic regions, suggesting a link between ionospheric changes and the earthquake generation process.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Research on short-impending ELF electromagnetic anomaly based on DEMETER satellite before the Wenchuan Ms8.0 earthquake

  • 期刊论文

  • 发表日期：

    2025年2月24日

查看全文
  • Jian-Guo Zhang,
  • Chang-Hong Zhao,
  • Lei Zhang,
  • Shuang-Feng Zhang,
  • Xuan-Ye Shen,
  • Xiao-Dong Yang

摘要

This study analyzed data from the DEMETER satellite, collected 10 days before the Wenchuan Ms8.0 earthquake on May 12, 2008. The time-frequency power spectrum of the data indicated a narrow-band radiative destabilization (below the cut-off frequency) 6 days prior to the earthquake. A significant anomaly in the Ez component was observed 3 days before the event. However, similar phenomena were found over aseismic regions, suggesting a link between ionospheric changes and the earthquake generation process.