Should I worry about this crack?
We had this addition built about 12 years ago. I just noticed this crack about a month ago, at which time it was only about 4" long. Now its about 24" long. This is the ceiling of a 3'x4' hall in our master bedroom that leads to a closet and a bathroom. There is a crack on the other side of that hall ceiling, heading towards this crack, but about 1" in front of it. That crack is about 10" long.
I don't understand why this has started now. There aren't any new cracks anywhere else that I know of.
We did have a small earthquake here in Indiana last year. maybe that got it started??
I've never had a crack on the ceiling like this before.
Here is a link that might be useful: