Final answer:
Seamounts are volcanic features on the ocean floor less than 1,000 meters tall, formed by volcanic activity and often found in oceanic regions, including chains created by hot spots like the Hawaii hot spot.
Step-by-step explanation:
Volcanic features on the ocean floor that are less than 1,000 meters tall are typically referred to as seamounts. Seamounts are isolated underwater mountains formed by volcanic activity and are often found in chains across the ocean basin, including the Pacific. They are usually volcanic in origin and can be found both near mid-ocean ridges and above hot spots, like the chain of volcanic islands created by the Hawaii hot spot.
Unlike mid-ocean ridges, which are continuous underwater mountain chains formed by upward flow of magma at divergent plate boundaries, or trenches that are deep underwater valleys formed by one tectonic plate subducting under another, or island arcs that form as a result of subduction zones, seamounts are not particularly associated with the boundaries of tectonic plates.