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Leonard, Oklahoma

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Title: Leonard, Oklahoma  
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Subject: U.S. Route 64 in Oklahoma
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Leonard, Oklahoma

Unincorporated community
Leonard is located in Oklahoma
Location within the state of Oklahoma
Country United States
State Oklahoma
County Tulsa
Time zone Central (CST) (UTC-6)
 • Summer (DST) CDT (UTC-5)

Leonard is a small unincorporated community in the southeast corner of Tulsa County, Oklahoma. It is on Highway 64 at the Tulsa County/Wagoner County line. The town was named for S. C. Leonard of Detroit, Michigan. The post office was established August 22, 1908.[1] The town serves the surrounding farming area. It is notable for the presence of the nearby Leonard Geophysical Observatory.

Leonard Geophysical Observatory

The Oklahoma Geological Survey's Leonard Geophysical Observatory is just south of Leonard.[2] The Oklahoma Geological Survey has announced its decision to close the facility permanently. This facility was established in 1960, because it was "seismically quiet," making it a satisfactory place for monitoring underground nuclear tests. The facility had been built in 1960 by Jersey Production Company (a subsidiary of Standard Oil Company of New Jersey) for seismic research. Jersey Company gave it to Oklahoma University in 1965. A 160 acres (65 ha) site near Leonard was purchased by Sarkis Foundation and given to the State of Oklahoma. In 1978, the observatory became part of the Oklahoma Geological Survey. It was soon named the "Oklahoma Geological Survey Observatory."[3]

Under the [4] The Russians were allowed to build a seismograph station on leased ground adjacent to the OGSO, which they returned to Oklahoma after completing their mission seven years later.[3]

The observatory employs a staff of two, and has been involved in monitoring earthquakes in the vicinity of Oklahoma since it opened. However, Austin Holland, state seismologist, has said that it is technologically obsolete and that the work can be done in the main OGS office at the OU campus in Norman. He added that the estimated cost to upgrade the Leonard facility is about $100,000. The state will close it during the summer of 2015, though the date has not been determined. The two staffers have been offered jobs in Norman,according to Holland.[5]

External links

  • "Cities/Towns of Tulsa County, Oklahoma"
  • . Accessed April 29, 2015Tulsa WorldLawson, James E., "History of the Oklahoma Geological Survey Observatory near Leonard, OK." Accessed August 17, 2015.


  1. ^ Linda Haas Davenport,"Cities/Towns of Tulsa County, Oklahoma" Accessed April 12, 2015.
  2. ^ Oklahoma Geological Survey:Leonard Geophysical Laboratory
  3. ^ a b Lawson, James E., "History of the Oklahoma Geological Survey Observatory near Leonard, OK. Accessed August 17, 2015.
  4. ^ . April 22, 2015.New YorkerGalchen, Rivka. "Goodbye to an Oklahoma Earthquake Observatory." Accessed August 11, 2015.
  5. ^ Krehbiel, Randy. "Oklahoma Geological Survey closing Leonard Seismic Observatory to cut costs." Accessed April 29, 2015.
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