Tsunamis are primary hazards.
Earthquakes only occur on plate boundaries
A volcanic eruption only occurs on plate boundaries.
A tectonic event always has a significant impact on people
A tectonic event does not impact people when there are few or no people living in the affected area.
Tectonic plates move continously.
Plate movement is where convection currents move the plates - the lithosphere.
A divergent plate boundary is one where the plates move away from each other.
A Convergent plate boundary is one that moves side by side, sliding past each other.
Each stage of the Richter scale is 60x more powerful in terms of energy