Misplaced Pages

Māhukona
MāhukonaLocation in Hawaii
Highest point
Elevation	−3,770 feet (−1,149 m)
Coordinates	20°01′N 156°01′W / 20.017°N 156.017°W / 20.017; -156.017
Geography
Location	Hawaii, US
Parent range	Hawaiian Islands
Topo map	USGS Kamuela
Geology
Mountain type(s)	Shield volcano, Hotspot volcano
Volcanic arc/belt	Hawaiian-Emperor seamount chain
Last eruption	About 470,000 BP

Māhukona is a submerged shield volcano on the northwestern flank of the Island of Hawaiʻi. A drowned coral reef at about 3,770 feet (-1,150 m) below sea level and a major break in slope at about 4,400 feet (-1,340 m) below sea level represent old shorelines.

A roughly circular caldera marks its summit. A prominent rift zone extends to the west. A second rift zone probably extended to the east but has been buried by younger volcanoes.

The main shield-building stage of volcanism ended about 470,000 years ago. The summit of the shield volcano was once 800 feet (250 m) above sea level, but subsided below sea level between 435,000 and 365,000 years ago.

Māhukona is the oldest volcano to build Hawaiʻi island, older than Kohala and Mauna Kea.

The Monterey Bay Aquarium Research Institute investigated the area with a remotely controlled submarine in 2001.

It was named for the area known as Māhukona, on the shore to the northeast.

References

1. "Mahukona, Hawaii". Volcano World. Oregon State University. Archived from the original on 2012-02-16. Retrieved June 23, 2010. attributed to:
   David A. Clague; James G. Moore (April 1991). "Geology and Petrology of Mahukona Volcano". Bulletin of Volcanology. 53 (3): 159–172. Bibcode:1991BVol...53..159C. doi:10.1007/BF00301227. S2CID 129362650.
2. "Volcanoes of the Big Island". Volcano Watch. Hawaiian Volcano Observatory. September 15, 1995. Retrieved June 23, 2010.
3. "Hawaii Cruise: March 13, 2001 to June 2, 2001". Monterey Bay Aquarium Research Institute. Retrieved June 23, 2010.
4. U.S. Geological Survey Geographic Names Information System: Māhukona

Further reading

• David A. Clague; Andrew T. Calvert (July 2009). "Postshield stage transitional volcanism on Mahukona Volcano, Hawaii". Bulletin of Volcanology. 71 (5): 533–539. Bibcode:2009BVol...71..533C. doi:10.1007/s00445-008-0240-z. S2CID 128983099.

External links

• "Mahukona". Global Volcanism Program. Smithsonian Institution. Retrieved 2021-06-28.

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

This Hawaiʻi state location article is a stub. You can help Misplaced Pages by expanding it.

• v
• t
• e

• Volcanoes of Hawaii
• Hawaiian–Emperor seamount chain
• Shield volcanoes of the United States
• Hotspot volcanoes
• Extinct volcanoes of the United States
• Polygenetic shield volcanoes
• Pleistocene shield volcanoes
• Pleistocene Oceania
• Cenozoic Hawaii
• Calderas of Hawaii
• Hawaii geography stubs