You file a report claim.
If someone hits a parked car then they are automatically liable.
Answer: The vehicle that initiates the collision is at fault.
The person who drove their car into the parked car.
As long as the parked vehicle is parked properly and not illegally parked in any manner, then the vehicle that rear-ended the parked car is at fault. Now if the parked car is sitting illegally (such as double parked or parked in a no parking zone, etc.) then the parked car is at fault or even both the parked car AND the car that hits it are BOTH at fault.
I think it would have to be the person who hit your car because they caused your car to crash into the other car.
The car in motion is ALWAYS at fault when it hits a stationary vehicle.
Car 1 would be at fault as it was the initiator of the acident.
the person who parked the car
The person who hit a parked vehicle is at fault.