How do an earthquake occur?

Answer 1

Basically, the process is identical to an earthquake on land. The Earth's crust is made up of Plates, which move against each other. Sometimes they get stuck, resulting in a build-up of pressure which eventually breaks the obstruction. It the sudden release of this pressure, that causes an Earthquake. The only difference with a Seaquake, is that this happens underwater, on the Seabed.

The major problem with Seaquakes, are their secondary effects, the vibration and shockwaves can displace a large volume of water, which becomes a Tidal Wave or Tsunami.

Answer 2

An earthquake occurs when there is a sudden release of energy in the Earth's crust, resulting in seismic waves that shake the ground. This release of energy is usually caused by the movement of tectonic plates along faults in the Earth's crust. The point on the Earth's surface directly above where the earthquake originates is called the epicenter.

Answer 3

u c the world is like a jicksaw (how ever u spell it) the plates are all connected 2gether nd wen they move out of place it starts a earthquake. well dats all i can remember.