Natural Hazards and Earth System Sciences
Natural Hazards and Earth System Sciences
NHESS
Articles | Volume 24, issue 3
Articles | Volume 24, issue 3
https://doi.org/10.5194/nhess-24-773-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/nhess-24-773-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 24, issue 3
Research article
 | 
06 Mar 2024
Research article |  | 06 Mar 2024

Characteristics and mechanisms of near-surface negative atmospheric electric field anomalies preceding the 5 September 2022, Ms 6.8 Luding earthquake in China

Lixin Wu, Xiao Wang, Yuan Qi, Jingchen Lu, and Wenfei Mao

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Cited articles

Chen, C. H., Sun, Y. Y., Lin, K., Zhou, C., Xu, R., Qing, H., Gao, Y., Chen, T., Wang, F., Yu, H., Han, P., Tang, C. C., Su, X., Zhang, X., Yuan, L., Xu, Y., and Liu, J.Y.: A new instrumental array in Sichuan, China, to monitor vibrations and perturbations of the lithosphere, atmosphere and ionosphere, Surv. Geophys., 42, 1425–1442, https://doi.org/10.1007/s10712-021-09665-1, 2021. 
Chen, T., Wang, S. H., Li, L., Yang, M. P., Zhang, L. Q., Zhang, X. M., Huang, P. Q. Liu, J., Xiong, P., Ti, S., Wu, H., Song, J. J., Wang, C., Su, J. F., and Luo, J.: Analysis of abnormal signal of atmospheric electric field before the 2021-04-16 Luanzhou MS 4.3 Earthquake in Hebei Province, J. Geod. Geodynam., 42, 771–776, https://doi.org/10.14075/j.jgg.2022.08.001, 2022. 
Davis, T. N. and Sugiura, M.: Auroral electrojet activity index AE and its universal time variations, J. Geophys. Res., 71, 785–801, 1966. 
Ding, Y. F., Qi, Y., Wu, L. X., Mao, W. F., and Liu, Y. J.: Discriminating the multi-frequency microwave brightness temperature anomalies relating to 2017 Mw 7.3 Sarpol Zahab (Iran-Iraq border) earthquake, Front. Earth Sci., 9, 656216, https://doi.org/10.3389/feart.2021.656216, 2021. 
Dobrovolsky, I. R., Zubkov, S. I., and Myachkin, V. I.: Estimation of the size of earthquake preparation zones, Pure Appl. Geophys., 117, 1025–1044, https://doi.org/10.1007/BF00876083, 1979. 
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The atmospheric electric field (AEF) is the bridge connecting the surface charges and atmospheric particle changes before an earthquake, which is essential for the study of the coupling process between the coversphere and atmosphere caused by earthquakes. This study discovers AEF anomalies before the Luding earthquake in 2022 and clarifies the relationship between the surface changes and atmosphere changes possibly caused by the earthquake.
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