Originally Posted by
kycycler
You have explained the first spoke. The other 2 could be from the excess tension form the broken first spoke.
Nope.
Spokes fail due to fatigue, with the number of cycles dependent on mean stress and amplitude of the cycle with cycles occurring about 750 times a mile with the spokes unloading as they reach the bottom of the wheel.
All the spokes in a group see about the same mean stress (residual from the elbow forming operation, average tension) and variation (your weight, perhaps bending because they're too slack) so they fail about the same time.