Check
to see if the brick was laid after the house was built.
Sometimes years after a house is built, people pour
a new footer and lay bricks. So that means that this
is not caused by a broken footer on your house - just
patch cracks - or replace brick - no structural damage.
Now,
if the brick was laid on the house footer on top of
your block then good chance you have broken footers
inside. You will see step cracks in block or concrete
walls - this should be taken care of. When you have
cracks in dry walls windows, doors won't open or close.
It could even pull your roof apart - rough even for
a professional roofer to fix.
No
matter what kind of crack this is a warning you have
structural damage.