At her sentencing this morning Judge Colin Doherty said Quor effectively "cooked" the dog.
"I don't think it is a stretch to say that Midgy would have suffered terribly.
"I accept it was tragic for you," the judge told Quor.
"Midgy was a close friend and companion of yours for many years."
The judge said he did not think Ms Quor meant to kill her dog but she had to be accountable for her actions.
Ms Quor's lawyer Andrew McKenzie said the dog's death was akin to a parent accidentally injuring a child.
Ms Quor became depressed and personally suffered from the death of her companion.
On the day of Midgy's death she sought psychiatric help because of concerns she might harm herself.
After the sentencing SPCA Canterbury animal welfare manager Geoff Sutton said the fine might appear to be small in the circumstances but it reflected Quor's limited means.
Mr Sutton believed the case and publicity around it would still send a strong signal to pet owners about their responsibilities.
All of the money will go to the SPCA who brought who prosecuting Midgy.