Mo, they are known as earthquakes but the earthquakes cause the tsunamis.
Yes.
Yes, they can. (and do.)
Earthquakes often generate tsunamis. See the related link below:
All earthquakes occur underground, the exact place where the earthquake starts underground is called the Focus. The location where the earthquake first hits the surface of the earth is called the Epicenter! Hope I helped!
Tsunamis are often caused by earthquakes in the sea. Earthquakes are caused by moving tectonic plates. So, indirectly, yes. See the related question below for more information on the causes of tsunami.
Most tsunamis are caused by earthquakes below the sea level. These undersea earthquakes are a result of shifting in the earths tectonic plates.
Focus
What causes earth quakes is the plates under earth move or collide with each other and shake the earth. Tsunamis can be caused also by earthquakes, especially those centered on the ocean floor. But they can also be caused by landslides and other natural events near the oceans. See the related questions below.
The tectonic plates below the earth surface crash into each other forming a earthquake.
molten rock below the surface is called magma
Molten rock material below the earth's surface is called magma.lava
Below the Earth's surface an Igneous rock is intrusive. Above the Earth's surface it is called extrusive.Hope this helps.