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.
THE CAUSES OF TSUNAMI A short explanation of causes: Tsunami (pronounced su-nah'-me) are huge ocean waves caused by natural forces like underwater earthquakes. Tsunami are â¦ caused when the forces of these phenomena rapidly displace large amounts of water.