File:Viewing of Develocorder Film.jpg
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This is a file from the Wikimedia Commons. The description on its description page there is shown below.
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Summary
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English: Seismology and Seismometry.U.S. Geological Survey National Earthquake Information Center. A develocorder records signals from fifteen stations on a continuous reel of film. This is processed by the machine and is ready for viewing within eleven minutes of an event. Photo by R. McKenzie, pre-1977. Page 10 (upper photo), Earthquake Information Bulletin, v.9, no.3. |
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| Source | http://libraryphoto.cr.usgs.gov/cgi-bin/show_picture.cgi?ID=ID.%20Earthquake%20Information%20Bulletin%20167&SIZE=medium |
| Author | R. McKenzie of U.S. Geological Survey National Earthquake Information Center |
Licensing
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This image is in the public domain in the United States because it only contains materials that originally came from the United States Geological Survey, an agency of the United States Department of the Interior. For more information, see the official USGS copyright policy.
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| Date/Time | Dimensions | User | Comment | |
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| current | 12:39, 4 July 2014 | 1,400 × 1,054 (783 KB) | Z22 | User created page with UploadWizard |
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