description Kammu Guyot Overview
Kammu Guyot is a flat-topped submarine volcano in the northwestern Pacific Ocean. A guyot is a seamount whose summit has been leveled, commonly through erosion near or above sea level before the volcanic structure subsided. Kammu Guyot belongs to the Emperor Seamounts, the northern part of the Hawaiian-Emperor volcanic chain. It is studied by marine geologists as evidence of ancient volcanic activity, seafloor movement, and changes in the position of the Pacific Plate.
help Kammu Guyot FAQ
What is Kammu Guyot?
Kammu Guyot is a flat-topped submarine volcano in the Emperor Seamount chain of the northwestern Pacific Ocean. Its listed position is about 32.17 degrees north and 173 degrees east. [Marine Regions Gazetteer](https://www.marineregions.org/gazetteer.php?id=6065&p=details)
Why is Kammu called a guyot?
A guyot is a seamount with a summit flattened by erosion near sea level before the volcano subsided underwater. Kammu's flat top therefore records part of its history as an ancient volcanic island or shallow submarine platform. [NOAA](https://oceanservice.noaa.gov/facts/guyot.html)
How old is Kammu Guyot?
Geological studies place the volcanic rocks near Kammu at roughly 48 million years old. Kammu lies near the southern end of the Emperor chain, whose volcanoes become progressively older toward the northwest. [Journal of Geophysical Research](https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2020JB021109)
Why is Kammu named after a Japanese ruler?
Kammu is named for Emperor Kammu, an early medieval Japanese ruler. Several neighboring features in the Emperor Seamounts also use names connected with Japanese emperors. [Emperor Seamount list](https://en.wikipedia.org/wiki/List_of_volcanoes_in_the_Hawaiian%E2%80%93Emperor_seamount_chain)
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