Hanzawa Guyot

Hanzawa Guyot is a flat-topped seamount in the Pacific Ocean. Its level summit indicates that volcanic rock was once worn down near sea level before the feature subsided.

A guyot usually began as a volcanic island or seamount whose top was eroded by waves. Later, the seafloor and the volcano subsided, leaving a flat summit below the ocean surface.

Hanzawa Guyot is generally described as an ancient volcanic seamount rather than a currently active volcano. Its importance today is mainly geological and ecological.

Seamounts such as Hanzawa Guyot can create local habitats for marine organisms by altering currents and providing hard surfaces. The exact species found there depend on depth, water conditions, and survey coverage.