The Richter scale doesn't measure quake damage (see: Mercalli Scale) which is dependent on a variety of factors including population at the epicentre, terrain, depth, etc.
The circulatory system works with the muscular system, the nervous system, and the digestive system. The heart is a muscle so it is part of the muscular system. Also the heart and lungs have nerves so it is also part of the nervous system.
The main parts of the circulatory system are the heart, arteries and veins. Together, they work together to pump blood throughout the system, with the blood within, containing â¦ oxygen that is vital to the survival of an organism.