Examples Examples of these phenomena are underground utility lines cracking,seawater intrusion and settlements of buildings and civil infrastructures. Therefore,land subsidence is one of the challenging issues that need to be addressed in many countries including Australia,China,Egypt,France,Germany, India,Iran,Israel,Italy,Japan,Mexico,Poland,Saudi Arabia,Sweden,the Netherlands,UK and USA. Examples of these phenomena are underground utility lines cracking, seawater intrusion and settlements of buildings and civil infrastructures. Therefore, land subsidence is one of the challenging issues that need to be addressed in many countries including Australia, China, Egypt, France, Germany, India, Iran, Israel, Italy, Japan, Mexico, Poland, Saudi Arabia, Sweden, the Netherlands, UK and USA. Examples