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.
An ocean earthquake commonly occurs between 200 and 1,000 years. As the pressure of floating plates bouncing against a continental plate rises, the continental plate starts pushing back. This causes an ocean floor island to recede underwater until the pressure is too great.
Earthquakes are caused by shifts in the Earth's crust, and normally occur when rock layers move past each other along a boundary, or fault line. The surface of the land, or the sea floor, can move sideways, up, or down, and this displacement causes seismic waves to move outward, above and around the shift.