posted on Sep, 12 2017 @ 07:28 PM
One correlation could perhaps be had with a huge proton storm and bedrock that contains large amounts of quartzite.
Quartz has semiconductor properties when physically shocked (piezoelectric effect). Since protons are mass, perhaps there is an undocumented effect
that could cause these noises. Additionally, it was said that there were lights and sparks seen over the region of the Mexican earthquake.
Most likely pseudo-science until proven, but there is so much we do not understand about the Sun and physical anomalies that could occur in extreme
interactions with the Earth. I would not throw out the possibility that they are related, purely based upon the scientific interactions that we do