The most dense layer of the atmosphere is the troposphere is the most dense layer because it is at the bottom of the atmosphere. The troposphere is where all our weather happe â¦ ns. It also has the highest air pressure. But more specifically, the earths atmosphere is most dense at the surface.
Earthquakes on faults like these may cause tsunamis in the Puget Sound region. 'Deep' faults Deep faults can occur where two tectonic plates collide and one of the plates is forced beneath the other.
Steps of tsunami creation. 1) fault movement creates huge gap 2) water (from the beach) fills the gap 3) because the water is sucked from the beach, an exposed area that was once covered is exposed 4) this water recedes about Â½ mile or 1 mile back. Tsunamis or seismic sea waves (not tidal waves) result when earthquakes change the seafloor.