Tuscaloosa Seamount Explained

Tuscaloosa Seamount
Elevation:	-2765
Location:	Pacific
Coordinates:	22.0667°N -157.0833°W
Region:	US-HI (Hawaii)
Type:	hyaloclastite
Age:	1.5 to 2 ma

The Tuscaloosa Seamount is an undersea mountain in the Hawaiian archipelago. It is about northeast of the island Oʻahu.

Tuscaloosa Seamount is composed of volcanic rock, but in contrast to the overwhelming majority of seamounts, it is not a submarine volcano. It is a huge block of rocks that broke off about two million years ago at the Nuʻuanu submarine landslide when the volcano Koʻolau collapsed.

The Tuscaloosa Seamount is 30km (20miles) long and 17km (11miles) wide. Its shallow summit rises across the sea bottom but is below sea level.

References

^[1]

^[2]

^[3]

^[4]

Notes and References

1. Barbara H. Keating . William J. McGuire . Instability and Structural Failure at Volcanic Ocean Islands and the Climate Change Dimension . Advances in Geophysics . 47 . 2004 . 176–272 . 10.1016/S0065-2687(04)47004-6. 9780120188475 .
2. Stephen A. Langford . Richard C. Brill . Giant Submarine Landslides on the Hawaiian Ridge: A Rebuttal . Pacific Science . 26 . 1972 . 254–258.
3. James Gregory Moore . David A. Clague . Robin T. Holcomb . Peter W. Lipman . William R. Normark . Michael E. Torresan . Prodigious Submarine Landslides on the Hawaiian Ridge . Journal of Geophysical Research . 94 . B12 . 1989 . 17465–17484 . https://web.archive.org/web/20201116201648/https://pdfs.semanticscholar.org/8bfe/41f2295d5c072f7e03bb4005342a3612fc75.pdf . dead . 2020-11-16 . 10.1029/JB094iB12p17465. 128904751 .
4. News: Kasey White . Scientists Find Evidence of Cataclysmic Volcanic Event on Oahu . . May 2002 . 2012-10-24.