earthquakes effect the ionosphere, can knock out gps
https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2019SW002302
https://spaceweather.com/ 05/03/20
earthquakes effect the ionosphere, can knock out gps
https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2019SW002302
https://spaceweather.com/ 05/03/20