11:15 〜 11:30
[MIS03-09] Statistical validation of the possible Lithosphere-Atmosphere-Ionosphere Coupling prior to earthquakes by means of 3.5 years of Swarm satellite electromagnetic data analysis
★Invited Papers
キーワード：Earthquake , Seismic Precursors, LAIC, Swarm satellites, CSES
SAFE (“Swarm for Earthquake study”) project (funded by ESA in the framework of "STSE Swarm+lnnovation”) deals with the integrated analysis of more physical parameters whose abnormal variations have been found to be possibly associated with impending earthquakes. These observations are mainly: electromagnetic variations, total electron content and the electron density in the ionosphere, measured both from Swarm satellites and ground-based observatories. We show here the results of a systematic analysis of around 3.5 years of magnetic and electron density Swarm satellite anomalies in the whole space-time interval of interest, avoiding high magnetic latitudes, which are correlated with earthquakes by means of a superposed epoch approach. Both magnetic and plasma data analyses show that the anomaly concentrations are larger than random anomaly distributions by a factor of more than 2.5, and a deviation from the random mean by more than 40 times the standard deviation, supporting the hypothesis for a lithosphere-atmosphere-ionosphere coupling in the preparation phase of earthquakes.
The recent launched CSES satellite mission with dedicated scientific payload for pre-earthquake anomaly detection will let us available more electromagnetic data for applying the same techniques for searching precursors of future earthquakes.
The recent launched CSES satellite mission with dedicated scientific payload for pre-earthquake anomaly detection will let us available more electromagnetic data for applying the same techniques for searching precursors of future earthquakes.