Can one detect passage of small black hole through the Earth? - https://arxiv.org/abs/0710.3438v1

A physics stack exchange answer about it: https://physics.stackexchange.com/a/55184

The most relevant part:

> The total energy created by a PBH roughly equals the energy produced by the detonation of one tonne of TNT, but this energy is the total energy it deposits along its path through the Earths diameter, not the energy it produces on impact. So don’t expect a magnificent explosion, we’d be lucky to see a spark as it hits the ground.