Answer :
The false statement about earthquake-generated tsunamis is b. tsunamis are commonly formed from lateral plate motion at divergent plate boundaries, like continental rifts and mid-ocean ridges.
Tsunamis are more commonly associated with convergent plate boundaries where subduction occurs, leading to megathrust earthquakes and vertical displacement of water. The false statement about earthquake-generated tsunamis is b. Tsunamis are not commonly formed from lateral plate motion at divergent plate boundaries, like continental rifts and mid-ocean ridges. Instead, they are most commonly generated by megathrust earthquakes that occur at subduction zones where the earthquake-generating fault is under ocean water. Tsunamis are related to the elastic rebound of the non-subducting, overlying plate, and they originate from the vertical displacement of water from underlying megathrust earthquakes.
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Final answer:
The false statement about tsunamis is that they are commonly formed from lateral plate motion at divergent plate boundaries. Tsunamis are mainly generated by vertical displacement of water at subduction zones, not divergent boundaries.
Explanation:
The statement about earthquake-generated tsunamis that's false is b. tsunamis are commonly formed from lateral plate motion at divergent plate boundaries, like continental rifts and mid-ocean ridges. The formation of tsunamis is primarily associated with subduction zones and not divergent plate boundaries. Tsunamis are generated by the vertical displacement of water due to the movement of tectonic plates, often at subduction zones where one plate dives beneath another. This movement can cause a sudden uplift of the sea floor, displacing a massive volume of water and generating a tsunami. Lateral plate motion at divergent boundaries, such as at mid-ocean ridges or continental rifts, does not typically produce the vertical displacement necessary for tsunami generation.
