First, there was an earthquake with a magnitude of 8.9 on the Ricther scale. There was also a shift underneath the water. All the water above it was disturbed. All that water formed into a wave which gradually grew bigger. When it arrived, it washed out everything in it's path.
The earthquake was the moving of two plates that have been stressing for centuries, many miles away from Japan.
The tsunami was a result of the lifting of one plate in the ocean-it was giant.
A tsunami hit japan after the earthquake.
The Earthquake occurred before the tsunami as it is what caused the tsunami.
earthquake in ocean
Friday
Because of an Earthquake that happened which displaced a lot of water causing the tsunami.
The Tsunami was caused by the large earthquake that preceded it.
A huge earthquake off the coast of Japan and it's aftershocks caused the tsunami.
Japan had Tsunami and an Earthquake Kansas had an earthquake
If you mean how then here it is because the earthquake might of happened in the sea and went to japan and then the earthquake was strong enough to make a tsunami
Great East Japan Earthquake / 2011 Tohoku earthquake and tsunami
Just after the Earthquake.
The tsunami that devastated the Japan coast on March 11, 2011 was triggered by the magnitude 9.0 earthquake.