Earthquakes still need some work, but you will be glad to hear that a small change in the upcoming release makes machines explode when the strength is 0. Before now it was working on a percentage which meant they were exploding sooner than they should.
Some other tweaks should stop handymen becoming stuck when a room explodes as well. This won't stop all the issues with earthquakes, but it is a small step in the right direction.
The next step is to introduce the warning tremor, so you at least get a warning and can get as many machines as possible in the best condition they can be in.