Pre-Earthquake Oscillating and Accelerating Patterns in the Lithosphere-Atmosphere-Ionosphere Coupling (Laic) Before the 2022 Luding (China) Ms6.8 Earthquake

• DOI: 10.2139/ssrn.4804002
• Publication Date: 2024-04-23T07:21:12Z
• Authors: Xuemin Zhang; Angelo De Santis; Jing Liu; Saioa A. Campuzano; Na Yang; Gianfranco Cianchini; Xinyang Ouyang; Serena D’Arcangelo; Muping Yang; Mariagrazia De Caro; Xinyan Li; Cristiano Fidani; Hong Liu; Martina Orlando; Lei Nie; Loredana Perrone; Alessandro Piscini; Lei Dong; Dario Sabbagh; Maurizio Soldani; Pan Xiong
• Keywords: Science; Q; satellite observations; earthquake precursors; LAIC

Due to the significant earthquake-related perturbations observed in ionosphere by ground-based stations and space-borne satellites, scientists have increasingly focused on studying possible mechanisms of lithosphere, atmosphere coupling (LAIC) before during strong earthquakes. In this work, we contribute research, analyzing phase preparation 2022 Ms6.8 Luding (China) earthquake with a multi-parameter multi-layer approach from ground satellite data taken ionosphere, including b-value, revised accelerated moment release, Earth resistivity, ELF magnetic field emissions, atmospheric electric field, surface temperature, electron density at ionospheric F2 layer height ionosonde, GNSS TEC, CSES Swarm energetic precipitations NOAA satellites. terms number analyzed parameters geolayers investigated, work is certainly one most complete field. Finally, results are encouraging, supporting two-way model LAIC: way characterized slow chain processes, thermodynamic nature, starting proceeding above showing an exponential trend cumulative anomalies; second oscillating electromagnetic between lithosphere intermittent fluctuations corresponding anomalies.