How does the earthquake in japan start?

Answer 1

There are vaults in Earth's surface. They can be anywhere. These vaults are just cracks in the earth. The 2 pieces put a lot of pressure together, forming an earthquake, later turning into a mountain or a depression. If a vault is underwater, it causes an earthquake, as the one in Japan. Japan's earthquake had 8.9 magnitude. An earthquake underwater causes the water to overwhelm, and it causes a tsunami.

Answer 2

Earthquakes in Japan, like in most other regions, are caused by the movement of tectonic plates along faults in the Earth's crust. The stress that builds up as plates interact with each other is released in the form of seismic waves, leading to an earthquake. In Japan's case, the country is located on the Pacific Ring of Fire, a seismically active zone known for frequent earthquakes and volcanic activity.