Benioff Horizontal Seismometer (WWSSN)

Description
This variable reluctance, short-period horizontal seismometer is based on the design of Hugo Benioff, a scientist on the staff of the Seismological Laboratory at the California Institute of Technology in Pasadena. It was made by the Geotechnical Corporation in Dallas, Texas, in the early 1960s, for use in VELA-Uniform, a government-sponsored project designed to detect and map earthquakes and underground nuclear explosions. One part of VELA-Uniform was a World Wide Standardized Seismograph Network.
This example is marked "Model No. 1101 / Serial No. 4201." It was used at the WWSSN station at Junction City, Texas.
Object Name
seismometer
date made
1961-1962
maker
Geotechnical Corporation
Measurements
overall: 53 cm x 50.4 cm x 53.5 cm; 20 7/8 in x 19 27/32 in x 21 1/16 in
place made
United States: Texas, Dallas
ID Number
1999.0275.01
catalog number
1999.0275.01
accession number
1999.0275
subject
Measuring & Mapping
Science & Mathematics
Seismographs
event
Cold War
See more items in
Medicine and Science: Physical Sciences
Seismographs
Data Source
National Museum of American History, Kenneth E. Behring Center
Credit Line
U.S. Geological Survey

Visitor Comments

Add a comment about this object

**Please read before submitting the form**

Have a comment or question about this object to share with the community? Please use the form below. Selected comments will appear on this page and may receive a museum response (but we can't promise). Please note that we generally cannot answer questions about the history, rarity, or value of your personal artifacts.

Have a question about anything else, or would you prefer a personal response? Please visit our FAQ or contact page.

Personal information will not be shared or result in unsolicited e-mail. See our privacy policy.

Image CAPTCHA
Enter the characters shown in the image.