Heat within the asthenosphere creates convection currents that cause tectonic plates to move several centimeters per year relative to each other.
Most of the time, the worst aftershocks occur within the first 24 hours after the mainshock hits. These additional quakes are called foreshocks and aftershocks.
Online shops. Exploring the Underwater San Andreas Fault 2010. In contrast to convergent and divergent boundaries, no magma is formed. Jacquelyne Kious and Robert I.
Depending on which text editor you're pasting into, you might have to add the italics to the site name. Landforms Caused by Plate Tectonics. About the Author. British geoscientists. How big is that earthquake?
Along these boundaries, magma rises from deep within the Earth and erupts to form new crust on the lithosphere. Significant earthquakes.
Deep ocean trenches, volcanoes, island arcs, submarine mountain ranges, and fault lines are examples of features that can form along plate tectonic boundaries. Each type of boundary is associated with one of three basic types of fault, called normal, reverse and strike-slip faults.
When two tectonic plates converge, the heavier plate is forced downward, creating a subduction zone. Mars map. The new magma molten rock rises and may erupt violently to form volcanoes, often building arcs of islands along the convergent boundary.
Mars facts. If the pressure builds up enough, it will overcome the friction, the lock will give way suddenly, and the rocks will snap forward.