GNGTS 2022 - Atti del 40° Convegno Nazionale

GNGTS 2022 Sessione 1.3 171 A MULTIPARAMETRIC AND MULTILAYER APPROACH TO STUDY THE PREPARATION PHASE OF LARGE EARTHQUAKE OCCURRED IN JUNE 15 2019, M7.2 IN KERMADEC ISLANDS (NEW ZEALAND) M. Orlando 1 , A. De Santis 1 , L. Perrone 1 , M. Calcara 1 , S.A. Campuzano 2 , G. Cianchini 1 , S. D’Arcangelo 1,3 , D. Di Mauro 1 , D. Marchetti 4 , A. Nardi 1 , A. Piscini 1 , D. Sabbagh 1 , M. Soldani 1 1 Istituto Nazionale di Geofisica e Vulcanologia (INGV), Rome, Italy 2 Instituto de Geociencias IGEO, Madrid, Spain 3 Complutense University, Madrid, Spain 4 Jilin University, Changchun, China On June 15, 2019 a large M7.2 earthquake occurred in the Kermadec Islands (New Zealand) as the result of shallow reverse faulting movement within the Tonga-Kermadec subduction zone. This work deals with a multiparametric and multilayer approach to study the earthquake related processes that occurred before the nucleation of the same seismic event. We focused our analyses on seismic data by earthquake catalogues, atmospheric data by climatological archives and ionospheric data from ground to space, mainly from satellite, in order to disclose the possible Lithosphere-Atmosphere-Ionosphere Coupling (LAIC) effects. In particular, for the ionospheric investigations, we analyze and compare the Global Navigation Satellite System (GNSS) receivers network and in-situ observations from space thanks to both Swarm constellation (ESA) and the China Seismo-Electromagnetic Satellite - CSES-01 (CNSA - ASI) dedicated to search for possible ionospheric disturbances before medium-large earthquakes. This multiparametric analysis demonstrates an acceleration of geosystemic perturbations during a coupling between the Lithosphere-Atmosphere-Ionosphere (LAIC) before the large Kermandec 2019 seismic event, and finds that it is fundamental to understand better the LAIC in the occasion of complex phenomena such as earthquakes.