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Yuryaku Guyot
Elevation of the Pacific seafloor, showing the Hawaiian-Emperor seamount chain, including Yuryaku Seamount a bit off of the V. The sharp "V" separates the Hawaiian Ridge from the older Emperor Seamount portion of the chain. Yuryaku is the center/northernmost and most elongated of the small grouping of three fairly small volcanoes near the bend.
Location
Group	Emperor seamounts
Coordinates	32°40.20′N 172°16.2′E / 32.67000°N 172.2700°E / 32.67000; 172.2700
Geology
Type	Guyot, Hotspot volcano
Volcanic arc/chain	Hawaiian-Emperor seamount chain
Last eruption	43 million years ago

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.

Geology

Alkalic basalt dredged from Yuryaku Seamount is similar to the alkalic basalt that caps the volcanoes in the Hawaiian Islands. Analyses gave a mean age of 42.3 ± 1.6 m.y. for Yuryaku Seamount. The data collected helped show that the age of the Hawaiian-Emperor bend is about 41 to 43 m.y. Alkalic basalt have been sampled at Yuryaku Seamount.

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

See also

• List of volcanoes in the Hawaiian – Emperor seamount chain

References

1. "Seamount Catalog". Seamounts database. EarthRef, a National Science Foundation project. Retrieved 2009-04-10.
2. Clague, D.A., Dalrymple, G.B. and Moberly, R. (1975). "Petrography and K-Ar ages of dredged volcanic rocks from the western Hawaiian Ridge and the southern Emperor Seamount Chain". Society of America, Bulletin 86(7). The Geological Society of America. pp. 991–998. Retrieved 2009-04-11.{{cite web}}: CS1 maint: multiple names: authors list (link)
3. Seach, John. "Yuryaku Seamount - John Seach". Volcanic database. volcanolive.com. Retrieved 2009-04-11.

v t e Hawaiian volcanism topics (list)
Windward Isles	South Arch volcanic field Kamaʻehuakanaloa Māhukona Hawaiʻi Kīlauea (Kīlauea Iki, Pauahi Crater, Puʻu ʻŌʻō, Mauna Ulu) Mauna Loa Hualālai Mauna Kea Kohala Kahoʻolawe Kauaʻi Kaʻula Lānaʻi Maui Haleakalā West Maui Molokaʻi Penguin Bank West Molokai Volcano East Molokai Volcano Niʻihau Oʻahu Honolulu Kaʻena Koʻolau North Arch volcanic field Waiʻanae
Leeward Isles	French Frigate Shoals Gardner Pinnacles Kure Atoll Laysan Lisianski Island Maro Reef Midway Atoll Necker Island Nihoa Pearl and Hermes Atoll
Emperor Seamounts	Abbott Colahan Daikakuji Detroit Hancock Jingū Kammu Kimmei Koko Meiji Nintoku Ojin Suiko Yomei Yuryaku
Notable eruptions and vents	1955 Hawaiian submarine eruption 1975 eruption of Mauna Loa 1984 eruption of Mauna Loa 2018 lower Puna eruption 2022 eruption of Mauna Loa Keanakakoi eruption ʻAilāʻau eruption Halemaʻumaʻu Kīlauea Caldera Kīlauea Iki Mauna Ulu Powers Caldera Puʻu ʻŌʻō
Topics	ʻAʻā (lava) Evolution of Hawaiian volcanoes Haleakalā National Park Hawaiʻi Volcanoes National Park Hawaiian–Emperor seamount chain Hawaiian eruption Hawaiian Volcano Observatory Kīlauea eruptions Lava fountain Limu o Pele Mauna Loa eruptions Pāhoehoe (lava) Pele (deity) Pele's hair Pele's tears Puna Geothermal Venture Volcano House

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