I think the author of this book and most of his readers are poorly informed amateurs
The author mentions lunar and tidal forces. If he had read Robert Felix or Vault-Co he'd know that magnetic forces are much, much stronger. He is undoubtedly right about the tides triggering them but they happen because magnetic fields are shifting tectonic plates around. The tides probably just act as the tipping weights on a see-saw.
If you doubt it, remember mainstream science now concurs with Robert Felix about the Northern Lights. The Aurora Borealis is literally a low grade atomic explosion occurring overhead. Imagine that force acting on the continental plates and fracture lines instead. There are a lot of things we can't see because of the spectral limitations of our eyes. That doesn't mean it isn't happening. It means we can only see the side effects with our existing senses.