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 last system that works with the Respiratory system is the Circulatory system.The circulatory system is the system that transfers the food nutrients and oxygen to our bodyâs cells. It also helps to transport carbon dioxide and waste products. This helps the respiratory system move nutrients to keep the lungs cleansed.