I think there's definitely a connection between the crystals and the tremors...and with that huge one yesterday, if that's the case, we should definitely take care of this before another one happens. They've only getting worse since last month...

[And it would probably explain why they were such a freak thing, too, if they've been behind them this whole time...]

The crystals look familiar to me, even though I don't recall seeing them in person, but I only know as much as you do, when it comes to these creeps. But how about we take on a couple more and make them spill what they know? I bet Nova could persuade them...