Which mechanism generates tsunamis after significant seafloor displacement?

💡 Explanation

Tsunamis often arise from seafloor displacement caused by earthquakes; elastic rebound on a thrust fault rapidlyuplifts/subsides portions of the seafloor. This movement displaces a large volume of water, therefore triggering the tsunami, rather than other phenomena like purely horizontal strike motions.

• Which process explains periodic increases across saline lake stratification?
• Which outcome occurs when wave approach angles repeatedly change along a beach with groynes?
• Which risk increases when coastal engineers use impermeable groynes?
• Which mechanism causes increased regional subsidence following megathrust earthquakes?
• Which horizon change occurs when intense rainfall enhances leaching?
• Which mechanism causes large-scale crustal deformation when a continental plate overrides an oceanic plate at a subduction zone?