Primary waves (p waves)
This is known as the magnitude of the earthquake.
Seismic gap.
In regards to "sand dunes" they migrate in the direction of the wind as sand particles being individually light can travel on the wind in forms of "sand storms" and therefore migrate overtime, create new dunes or reshape existing dune structures by either adding or withdrawing sand from the wind directions movement.
the relationship between earthquakes magnitude is the size or amount of energy an earthquake produces and has no connection to hour often earthquakes occur.
It causes the ground at the ocean floor to shift, resulting in the displacement of water. The beginnings of a potential tsunami!
true
Destructive plate boundary.