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.
 An earthquake is a natural tsunami warning. If you feel a strong quake do not stay in a place where you are exposed to a tsunami. If you hear of an earthquake be aware of the possibility of a tsunami and listen to the radio or television for additional information.