World Library  
Flag as Inappropriate
Email this Article


Māhukona is located in Hawaii
Location in Hawaii
Elevation −3,770 feet (−1,149 m)
Location Hawaii, US
Range Hawaiian Islands
Topo map USGS Kamuela
Type 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. The summit of the shield volcano was once 800 feet (250 m) above sea level. It has now subsided below sea level. A roughly circular caldera marks the summit of Māhukona. 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 subsided below sea level between 435,000 and 365,000 years ago.[1] This makes Māhukona the oldest volcano to build Hawaiʻi island, compared to Kohala to the east and Hualālai to the southeast.[2] The Monterey Bay Aquarium Research Institute investigated the area with a remotely controlled submarine in 2001.[3]

It was named for the area known as Māhukona on the shore to the northeast.[4]


  1. ^ "Mahukona, Hawaii". Volcano World. Oregon State University. Retrieved June 23, 2010.  attributed to:
    David A. Clague; James G. Moore (April 1991). "Geology and Petrology of Mahukona Volcano". Hawaii: Bulletin of Volcanology 53 (3): 159–172.  
  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". Hawaii: Bulletin of Volcanology 71 (5): 533–539.  

This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.

Copyright © World Library Foundation. All rights reserved. eBooks from Project Gutenberg are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.