A Disturbance Frequency Index in Earthquake Forecast Using Radio Occultation Data

Tao Zhang, Guangyuan Tan, Weihua Bai, Yueqiang Sun, Yuhe Wang, Xiaotian Luo, Hongqing Song, Shuyu Sun*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Earthquake forecasting is the process of forecasting the time, location, and magnitude of an earthquake, hoping to gain some time to prepare to reduce the disasters caused by earthquakes. In this paper, the possible relationship between the maximum electron density, the corresponding critical frequency, and the occurrence of earthquakes is explored by means of radio occultation data based on mechanism analysis and actual earthquake-nearby data. A new disturbance frequency index is proposed in this paper as a novel method to help forecast earthquakes. Forecasting of the location and timing of earthquakes is based on the connection between proven new frequency distributions and earthquakes. The effectiveness of this index is verified by backtracking observation around the 2022 Ya’an earthquake. Using this index, occultation data can forecast the occurrence of earthquakes five days ahead of detection, which can help break the bottleneck in earthquake forecasting.

Original languageEnglish (US)
Article number3089
JournalRemote Sensing
Issue number12
StatePublished - Jun 2023

Bibliographical note

Publisher Copyright:
© 2023 by the authors.


  • disturbance frequency
  • earthquake forecast
  • radio occultation

ASJC Scopus subject areas

  • General Earth and Planetary Sciences


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