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Song, C.K., Zhang, P.T. and Chen, B. (2024) Geomagnetic Field Change before and after Maduo MW7.3 Earthquake Based on Repeat Geomagnetic Measurement Data. Journal of Institute of Disaster Prevention, 26, 38-46.

has been cited by the following article:

• TITLE: Lithospheric Magnetic Anomaly in the Surrounding Area of the Dingri M6.8 Earthquake, Xizang

  AUTHORS: Bo Li, Fenglong Mao

  KEYWORDS: Dingri M6.8 Earthquake, Lithospheric Magnetic Field, Piezomagnetic Effect, Electrokinetic Effect

  JOURNAL NAME: International Journal of Geosciences, Vol.16 No.10, October 15, 2025

  ABSTRACT: The occurrence and development of earthquakes can cause abnormal changes in the lithospheric magnetic field. High-precision geomagnetic observations on both sides of the Dingri M6.8 epicenter revealed a −120 nT difference in the lithospheric magnetic field between the west and east sides, reflecting the local difference characteristics of the properties of the crustal medium around the epicenter. From 2018 to 2020, the annual variation of the magnetic field changed from −2.2 nT to +3.9 nT, which may be the precursor anomaly of the Dingri M5.9 earthquake in 2020. Calculations show that in the coseismic magnetic field variation of the M6.8 earthquake, the piezomagnetic effect is small while the electrokinetic effect is large, so the precursor anomaly of the M5.9 earthquake may be related to the electrokinetic effect produced by underground fluid migration.