Worldwide Superposed Epoch and Space Approach applied to CSES-01 and Earthquakes

A worldwide Superposed Epoch and Space Approach was applied to ionospheric electron density (Ne) data as observed by CSES-01 from April 2018 to July 2019 and shallow M5.5+ earthquakes. 160 earthquakes out of the 237 present some anomalies in the analysed space and time domain associated with about 8.5% of the CSES-01 Ne anomalies. Several concentrations are observed at around 10 and 20 day before the earthquake occurrences and are confined in the closest band of the first 3.4 degrees from each epicentre, i.e. within 380 km.

Figure 1. Space-time diagram as resulting from the Superposed Epoch and Space Approach applied to ionospheric electron density (Ne) data as observed by CSES-01 from April 2018 to July 2019  and shallow M5.5+ earthquakes.