How is a fault line connected to the tsunami?

Answer 1

The fault line is the subduction zone. The earthquake cause there is a megathrust earthquake. Megathrust are one of the most powerful earthquake. In order for a tsunami to be created the earthquake must be at least 7.5 or higher. Every megathrust earthquake creates a tsunami. The 8.8 earthquake that struck off the coast of Chile is one of the fault lines that created a tsunami. But the tsunami wasn't not big when it hit Hawaii. But in 1960, a 9.5 earthquake that struck off the coast from the same area generate a powerful tsunami that hit Hawaii and Japan. The waves was 35 ft when it hit Hawaii. The 2004 Indian ocean tsunami was cause by a fault line.

There is a risk in the Pacific Northwest. Where are fault there capable of creating powerful earthquake and tsunami. It's now since 300 years since that last time it happened in 1700. Now the stress is building there and scientist said that it has a 1 in 50 chance that the area will rupture in the next 50 years.

Answer 2

A fault line is a fracture in the Earth's crust where tectonic plates interact. When there is movement along a fault line, such as during an earthquake, it can displace the seafloor and generate a tsunami by causing a sudden vertical displacement of the water above it. This displacement of water creates a series of powerful waves that can propagate across oceans and eventually hit Coastlines.