GRAVITY PERTURBATION AND CHARACTERISTICS OF TEM-PORAL AND SPATIAL CHANGES OF BACKGROUND NOISE BE-FORE EARTHQUAKE: THE EXAMPLE OF MADUO MS7.4 AND YANGBI MS6.4 EARTHQUAKES
GOU Jia-ning, LIU Zi-wei, JIANG Ying, ZHANG Xiao-tong
SEISMOLOGY AND GEOLOGY . 2023, (1): 252 -268 .  DOI: 10.3969/j.issn.0253-4967.2023.01.014

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