Gravity Anomalies

If Earth is hollow and expanding, then geologically active areas will generally be located on a thinner crust than geologically inactive areas. Protruding mountains will not have a root under them, but a crack. Protruding volcanoes on fault lines will likewise be on stretched and thin areas. Geologically inactive areas such as the Tibetan Plane, North-East Canada and Central Africa will be on thicker crusts.

This means that the geologically active areas will have a higher capacitance than the inactive areas. If capacitance is the cause of gravity, then we should expect the geologically active areas to have stronger gravity than the inactive areas.

As it happens, geologically active areas do in fact have stronger gravity than the inactive areas. This is evident from comparing gravity anomaly maps with maps of earthquakes.

Himalaya, Andes, Alps, etc.

Iceland, Hawaii, Azores, etc.

Tibet, North East Canada, Central Africa, etc.