Another major geologic event that can happen with this type of plate movement is an earthquake , caused by the build‑up and sudden release of stress as the plates grind past each other.

Quick Scoop: What Can Happen When Plates Move?

When tectonic plates keep moving relative to each other, several geologic events are possible, depending on the boundary type:

  • Transform (plates grind past each other)
    • Frequent shallow earthquakes along the fault line.
* Ground rupture and horizontal displacement of the Earth’s surface.

* Over long timescales, formation of linear valleys and offset streams along the fault trace.
  • Convergent (plates collide)
    • Powerful earthquakes along the subduction zone or collision zone.
* Volcanic eruptions as the subducting plate melts and feeds magma to the surface.

* Mountain building, such as the rise of major ranges like the Himalayas in continent‑continent collisions.

* Deep‑ocean trenches where one plate bends and dives beneath another.
  • Divergent (plates move apart)
    • Earthquakes associated with rifting and faulting as the crust pulls apart.
* Volcanic activity as magma rises to fill the gap, creating new crust (mid‑ocean ridges or rift‑zone volcanoes).

* Formation of rift valleys and fissures at the surface.

If your original answer in the worksheet was “earthquake,” another valid geologic event for grinding or converging plates could be volcanic eruption or mountain formation , and if your original answer was “volcanic eruption,” another could be earthquake.

Information gathered from public forums or data available on the internet and portrayed here.