Answer :
Final answer:
The east coast of the United States has not been affected by tsunamis due to the absence of a tectonically active zone capable of generating tsunamis.
Explanation:
The east coast of the United States has not been affected by tsunamis in recorded history because it does not have a tectonically active zone offshore to generate tsunamis. Unlike the west coast, which has subduction zones capable of producing tsunamis, the east coast lacks this geological feature. Tsunamis are typically generated by underwater earthquakes, landslides, or volcanic eruptions that displace large volumes of water, resulting in the formation of a tsunami wave.
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