That was my thought. The shock wave would have transmitted thru the Earth back and forth several times. Probably woke a bunch of volcanoes.
Another Holiday Express Inn graduate, huh?
I always marveled at science and how our planet was formed so to speak,, or rather, hodge podged together.
Tectonics ands such have always caught my interest as well.
Maybe the early Hawaiian islands got a little kick start along the way.