You can find more sources here.

https://www.nature.com/articles/s41598-020-67860-3

https://www.sciencedaily.com/releases/2025/03/250304113817.htm

The researchers found a statistically correlation between peaks in proton density and the occurrence of large earthquakes (those with a magnitude of 5.6 or higher)

They observed a one-day time shift between the peak in proton density and the earthquake occurrence. This suggests that the solar activity MAY trigger or influence seismic events with a slight delay.