Examples Land subsidence has occurred in many areas, particularly in densely populated deltaic regions throughout the world.Most of the major subsidence areas have developed probably since World War ll because of accelerated rates in the use of water and oil and gas from the ground.  Land subsidence has occurred in many areas, particularly in densely populated deltaic regions throughout the world. Most of the major subsidence areas have developed probably since World War II because of accelerated rates in the use of water and oil and gas from the ground. Examples