EGU22-3138
https://doi.org/10.5194/egusphere-egu22-3138
EGU General Assembly 2022
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

The Jun 15, 2019, M7.2 Kermadec Islands (New Zealand) earthquake as analyzed from ground to space

Angelo De Santis1, Loredana Perrone1, Saioa A. Campuzano2, Gianfranco Cianchini1, Serena D'Arcangelo1,3, Domenico Di Mauro1, Dedalo Marchetti4, Adriano Nardi1, Martina Orlando1, Alessandro Piscini1, Dario Sabbagh1, and Maurizio Soldani1
Angelo De Santis et al.
  • 1INGV, Istituto Nazionale Geofisica e Vulcanologia, 00143 Roma, Italy (angelo.desantis@ingv.it)
  • 2Instituto de Geociencias IGEO (CSIC-UCM), Ciudad Universitaria, 28040 Madrid, Spain
  • 3Universidad Complutense de Madrid - UCM, 28040 Madrid, Spain
  • 4College of Instrumentation and Electrical Engineering, Jilin University, 130061 Changchun, China.

The M7.2 Kermadec Islands (New Zealand) large earthquake occurred on June 15, 2019 as the result of shallow reverse faulting within the Tonga-Kermadec subduction zone. This work deals with the study of the earthquake-related processes that occurred during the preparation phase of this earthquake. We focused our analyses on seismic (earthquake catalogues), atmospheric (climatological archives) and ionospheric data (from ground to space, mainly satellite) in order to disclose the possible Lithosphere-Atmosphere-Ionosphere Coupling (LAIC). For what concern the ionospheric investigations, we analysed and compared the observations from the Global Navigation Satellite System (GNSS) receiver network and those from satellites in space. Specifically, the data from the European Space Agency (ESA) Swarm satellite constellation and from the China National Space Administration (CNSA, in partnership with Italian Space Agency, ASI) China Seismo-Electromagnetic Satellite (CSES-01) are used in this study. An interesting comparison is made with another subsequent earthquake with comparable magnitude (M7.1) that occurred in Ridgecrest, California (USA) on July 6 of the same year. Both earthquakes showed several multiparametric anomalies that occurred at almost the same times from each earthquake occurrence, evidencing a chain of processes that point to the moment of the corresponding mainshock. In both cases, it is demonstrated that a multiparametric and multilayer analysis is fundamental to better understand the LAIC in complex phenomena such as the earthquakes.

How to cite: De Santis, A., Perrone, L., Campuzano, S. A., Cianchini, G., D'Arcangelo, S., Di Mauro, D., Marchetti, D., Nardi, A., Orlando, M., Piscini, A., Sabbagh, D., and Soldani, M.: The Jun 15, 2019, M7.2 Kermadec Islands (New Zealand) earthquake as analyzed from ground to space, EGU General Assembly 2022, Vienna, Austria, 23–27 May 2022, EGU22-3138, https://doi.org/10.5194/egusphere-egu22-3138, 2022.