Ōjin Seamount

guyot of the Hawaiian-Emperor seamount chain in the Pacific Ocean

Ōjin Seamount (応神海山) is an underwater volcano (seamount) of the Hawaiian–Emperor seamount chain in the Pacific Ocean.[1] Ōjin is an extinct volcano.[2]

The undersea Emperor seamount chain includes Ōjin

The seamount is also known as the "Ōjin Guyot" because it has a flat top.[3] This undersea geologic feature is also called a "guyot" or "tablemount".[4]

This seabed mountain is named after Emperor Ōjin of Japan.

The last eruption from Ōjin seamount was 55 million years ago.[5]



  1. Tarduno, John A. et al. "The Emperor Seamounts: southward motion of the Hawaiian hotspot plume in Earth's mantle," Science, 22 August 2003, pp. 1064-1069 DOI:10.1126/science.1086442; retrieved 2012-6-14.
  2. Monterey Bay Aquarium Research Institute, "Life-cycle of Hawaiian hot spot volcanoes" Archived 2013-04-14 at the Wayback Machine; retrieved 2012-6-14.
  3. Guyots are flat-topped because they were once above sea level, and were worn down by the sea.
  4. Geographic.org, "Ōjin Guyot"; retrieved 2012-6-10.
  5. VolcanoLive.com, "Ojin Seamount"; retrieved 2012-6-10.

Other websites


37°58.20′N 170°22.80′E / 37.97000°N 170.38000°E / 37.97000; 170.38000