Sheetrock Crack

I'm not drywall expert, but it seems to be that if the crack is at a tape line, you need to support the drywall better at that point by driving in a few screws, then use some fiberglass tape and mud it up.

The sheetrock in the ceiling over my dining room has developed a crack. The crak has begun 'running' across the ceiling. Would appreciate suggestions as to how to stop the crack from running further (drill a small 'stop' hole maybe) and to effect a repair .

thanks for any helpful suggestions.

First question.... how old is the house?

suggestions

'stop' hole

Second question(s):

1. Is the crack at a seam where two sheets meet or, say, running across the middle of a single sheet?

1. Do you live anywhere in the vicinity of an operating rock quarry or any other major, ongoing infrastructure project that involves blasting? (I'm not being a smart-ass here, either.)

2. How reliable, if known, were the guys who installed the ceiling in the first place?

1. Is the sheetrock screwed into sound, original ceiling (especially if yours is an older home with plaster walls and ceilings), or was this a job that covered any myriad of past sins -- like a bowed plaster ceiling or a really crap-job suspended ceiling?

2. If you were around when the work was done originally, was the drywall half-inch or five-eights thick?

AJS

What is above it? Attic or another finished floor?

I'm not sure I will have a close look today and see if I can tell.

No.

Don't know. The house is 47 years old.

The sheetrock is the original ceiling.

Don't know.

Attic with nothing stored over the dining room area.