Victoria Island structure

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Victoria Island structure
Victoria Island structure is located in California
Victoria Island structure
Victoria Island structure
Impact crater/structure
Confidence probable[1]
Diameter 5.5 kilometers (3.4 mi)
Exposed No
Drilled No
Coordinates 37°53′24″N 121°32′06″W / 37.89°N 121.535°W / 37.89; -121.535Coordinates: 37°53′24″N 121°32′06″W / 37.89°N 121.535°W / 37.89; -121.535
Country United States
State California
District San Joaquin County

The Victoria Island structure is a 5.5 km (3 mi) bowl-shaped structure buried in the shale sediments of the Sacramento-San Joaquin River Delta, 12 miles (19 km) west of Stockton, California. The circular structure is part of a former sea bed, and lies 1,490–1,600 meters (4,890–4,250 ft) below sea level.[2]

Discovered during oil exploration and reported at the Lunar and Planetary Science Conference in Houston, Texas, in March 2007, it is thought to be a buried impact crater formed between 37 and 49 million years ago.[3][4]

Victoria Island, which the structure is named for, is in the San Joaquin River Delta at approximately 37°53′24″N 121°32′06″W / 37.890°N 121.535°W / 37.890; -121.535.[5] The current publications do not list a more precise location for the impact structure than the island.

See also[edit]


  1. ^ Rajmon, D. "Impact Database 2009.2". Impact Field Studies Group. entry for "Victoria Island". Retrieved 2010-03-16. 
  2. ^ Paul Rincon (2007). 'Crater' spied under California, BBC News
  3. ^ Spevack, S. C., Morrow, J. R., Spevack, B. Z. (2007). "3-D seismic and well log analyses of the Victoria Island Structure, a Potential Buried Impact Crater, San Joaquin County, California" (.PDF). Lunar and Planetary Science Conference XXXVIII. Retrieved 2009-09-17. 
  4. ^ Roach, John (2007-03-27). "Giant Meteorite Hit Ancient California, Crater Study Suggests". National Geographic News. National Geographic Society. Retrieved 2009-09-01. 
  5. ^ "Victoria Island". Geographic Names Information System. United States Geological Survey. 

External links[edit]