Things that go b-b-b-BUMP in the night

We had two moderate temblores last night. The first a 4.1 around 11:53 PM and the second a 4.2 a couple of minutes before 4AM. I didn't feel either one, and I'm unaware of any damage, but temblores this size usually don't cause any noticeable damage.

Of course they remind us of the Good Friday quake of 2014. Scariest day of my life.