Yuryaku Seamount

Yuryaku Seamount (also called Yuryaku Guyot) is a seamount (underwater volcano) and guyot (flat-topped) located northwest of Hawaii.

It is located a little southwest of the V-shaped bend separating the Emperor Seamounts from the older Hawaiian islands, all of the Hawaiian-Emperor seamount chain in the North Pacific Ocean.

Alkalic basalt dredged from Yuryaku Seamount is similar to the alkalic basalt that caps the volcanoes in the Hawaiian Islands.

[2] The data collected helped show that the age of the Hawaiian-Emperor bend is about 41 to 43 m.y.

The last eruptions of Yuryaku Seamount were 43 million years ago, during the Eocene epoch of the Paleogene Period.

Scheme of a Hawaiian eruption