Earthquake Precursory Signals in Ionosphere From Swarm and CSES Satellites
Session: Application of Remote Sensing and Space-Based Earth Observations Data in Earthquake Research II
Type: Oral
Date: 4/22/2021
Presentation Time: 05:00 PM Pacific
Description:
A superposed epoch and space approach is applied to abnormal variations of magnetic field and electron density as observed by Swarm and CSES satellites between +50 and -50 degrees in magnetic latitude and a worldwide dataset of shallow M5.5+ earthquakes. A statistical analysis reveals that the concentrations of anomalies found before the occurrence of earthquakes are significant higher than any homogeneous random anomaly distribution in the same time and space intervals. Focusing the attention on the cases of single bands of magnitude, the anticipation times of the ionospheric precursors tend to scale with the earthquake magnitude, as indicated by Rikitake law for ground precursors. In addition, also their duration seems to depend on the magnitude of the impending earthquake. A simple scheme of potential earthquake forecast on the base of these characteristics is finally proposed.
Presenting Author: Angelo De Santis
Student Presenter: No
Authors
Angelo De Santis Presenting Author Corresponding Author angelo.desantis@ingv.it Istituto Nazionale di Geofisica e Vulcanologia |
Saioa Campuzano saioa.arquerocampuzano@ingv.it Instituto de Geociencias IGEO (CSIC-UCM) |
Gianfranco Cianchini gianfranco.cianchini@ingv.it Istituto Nazionale di Geofisica e Vulcanologia |
Domenico Di Mauro domenico.dimauro@ingv.it Istituto Nazionale di Geofisica e Vulcanologia |
Dedalo Marchetti dedalo.marchetti@ingv.it Istituto Nazionale di Geofisica e Vulcanologia |
Martina Orlando martina.orlando@ingv.it Istituto Nazionale di Geofisica e Vulcanologia |
Loredana Perrone loredana.perrone@ingv.it Istituto Nazionale di Geofisica e Vulcanologia |
Alessandro Piscini alessandro.piscini@ingv.it Istituto Nazionale di Geofisica e Vulcanologia |
Dario Sabbagh dario.sabbagh@ingv.it Istituto Nazionale di Geofisica e Vulcanologia |
Maurizio Soldani maurizio.soldani@ingv.it Istituto Nazionale di Geofisica e Vulcanologia, Roma, , Italy |
Xuhui Shen xuhuishen@ninhm.ac.cn Space Observation Research Center, National Institute of Natural Hazards, MEMC, Beijing, , China (Mainland) |
Zeren Zhima zerenzhima@qq.com Space Observation Research Center, National Institute of Natural Hazards, MEMC, Beijing, , China (Mainland) |
Earthquake Precursory Signals in Ionosphere From Swarm and CSES Satellites
Category
Application of Remote Sensing and Space-based Earth Observations Data in Earthquake Research