It is also important to check that your urban growth and development projections do not conflict with neighboring jurisdictions and local governments in the area. â¢ Be sure to update your land use regulations to accommodate the new infill development that will result from implementation of the urban growth boundary.
This formation of new land results from the ocean floor rising. What Happens When New Islands Form. Subduction earth movements is the cause of new underwater islands and results in a displacement of ocean water. It happens when an ocean plate slides beneath a continental plate.
Image: A Valdivia street after the earthquake of 22 May 1960. The temblor caused localised tsunamis that severely battered the Chilean coast, with waves up to 25 metres. Image: Aerial view of coastal area on Isla Chiloe, Chile, showing tsunami damage and wave extent.