A number of geomagnetic storm related earthquake triggering processes have been discussed here. Do you know which one would be responsible for increased seismic activity directly beneath the sun and on the opposite side of the Earth from that location when there is a strong geomagnetic storm?

Is pressure which is being exerted on the atmosphere by solar storms being transferred to the ground? Or are those triggering effects the result of electromagnetic energy field interactions between geomagnetic storms and fault zones?