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NOAA's Historic Coast & Geodetic Survey (C&GS) Collection
Catalog of Images

2000 thumbnail picture
Coast and Geodetic Survey seismologist communicating with colleague
2001 thumbnail picture
Coast and Geodetic Survey seismologist plotting earthquake epicenter with spacing dividers
2002 thumbnail picture
Coast and Geodetic Survey seismologist plotting earthquake epicenter
2003 thumbnail picture
Coast and Geodetic Survey seismologist obtaining data to plot earthquake epicenter
2004 thumbnail picture
Coast and Geodetic Survey seismologists at work
2005 thumbnail picture
Lieutenant Philip Taetz at desk. Possibly Honolulu Observatory.
2006 thumbnail picture
Benioff horizontal seismometer
2007 thumbnail picture
Benioff horizontal seismometer
2008 thumbnail picture
Seismograph - spgr.
2009 thumbnail picture
Seismograph - spgr.
2010 thumbnail picture
Diagram of a type of seismometer
2011 thumbnail picture
World Wide Standardized Seismological Network Galvos
2012 thumbnail picture
World Wide Standardized Seismological Network Galvos
2013 thumbnail picture
World Wide Standardized Seismological Network Galvos
2014 thumbnail picture
Structure of Coast and Geodetic Survey Office of Seismology and Geomagnetism
2015 thumbnail picture
What the Geomagnetism Branch of the Coast and Geodetic Survey did
1969 ca.
2016 thumbnail picture
Products of the Coast and Geodetic Survey Geomagnetism Program
1969 ca.
2017 thumbnail picture
An artist's conception of the Earth's structure and geomagnetic field
1969 ca.
2018 thumbnail picture
Geomagnetic observatories that were currently putting hourly values in machine- readable form as of 1969.
1969
2019 thumbnail picture
Geomagnetic observatories that were putting hourly values in machine-readable form prior to the International Geophysical Year.
1969
2020 thumbnail picture
Geomagnetic observatories with digital magnetometers as of 1969.
1969
2021 thumbnail picture
Geogmagnetic observatories that have facilities for semi-automatic scaling of magnetogram records as of 1969.
1969
2022 thumbnail picture
Compass rose for use by mariners in comparing magnetic direction with true direction.
1969
2023 thumbnail picture
Magnetogram plots.
1969
2024 thumbnail picture
Magnetogram plots.
1969
2025 thumbnail picture
United States repeating stations as of 1969
1969
2026 thumbnail picture
Edmund Halley's isogonic chart of 1701 showing lines of equal magnetic declination. This was the earliest chart of this nature and one of the earliest geophysical thematic maps.
1701
2027 thumbnail picture
Surveyor taking sun azimuth for true direction to determine magnetic declination from magnetic observations.
1957 Ca.
2028 thumbnail picture
Surveying operations associated with determination of magnetic declination.
1957 Ca.
2029 thumbnail picture
Surveyor taking sun azimuth for true direction to determine magnetic declination from magnetic observations.
1957 Ca.
2030 thumbnail picture
Surveyor taking sun azimuth for true direction to determine magnetic declination from magnetic observations.
1957 Ca.
2031 thumbnail picture
Surveyor taking sun azimuth for true direction to determine magnetic declination from magnetic observations.
1957 Ca.
2032 thumbnail picture
Observer operating field-type Ruska magnetometer.
1957 Ca.
2033 thumbnail picture
Observer operating field-type Ruska magnetometer.
1957 Ca.
2034 thumbnail picture
Calibrating geomagnetic instruments at the Coast and Geodetic Survey geomagnetic observatory at Corbin, Virginia.
1963 September
2035 thumbnail picture
Calibrating geomagnetic instruments at the Coast and Geodetic Survey geomagnetic observatory at Corbin, Virginia.
1963 September
2036 thumbnail picture
Administrative Building at Fredericksburg Geomagnetic Observatory
Virginia, Corbin 1957 ca.
2037 thumbnail picture
Honolulu Geophysical Observatory
Hawaii, Oahu, Ewa Beach 1960 ca.
2038 thumbnail picture
Honolulu Geophysical Observatory
Hawaii, Oahu, Ewa Beach 1960 ca.
2039 thumbnail picture
Honolulu Geophysical Observatory. The vault?
Hawaii, Oahu, Ewa Beach 1960 ca.
2040 thumbnail picture
Honolulu Geophysical Observatory
Hawaii, Oahu, Ewa Beach 1960
2041 thumbnail picture
College, Alaska, seismic and magnetic observatory
Alaska, College 1964
2042 thumbnail picture
College, Alaska, magnetic observatory
Alaska, College 1964
2043 thumbnail picture
Quartz horizontal magnetometer
1957 Ca.
2044 thumbnail picture
Quartz horizontal magnetometer
1957 Ca.
2045 thumbnail picture
Universal gravitometer (synonymous with gravity meter - not in the sense of an instrument to measure specific gravity)
1957 Ca.
2046 thumbnail picture
Universal gravitometer (synonymous with gravity meter - not in the sense of an instrument to measure specific gravity)
2047 thumbnail picture
A seismograph record of the Long Beach Earthquake of March 10, 1933.
1957 Ca.
2048 thumbnail picture
A strong-motion accelerograph, an instrument used to measure the accelerations due to earthquake waves shaking the ground or structures. The accompanying record was of the Helena, Montana earthquake of October 31, 1935. In: Bulletin of the Geological Society of America, Vol. 49., No. 1, pp. 1-21.
1936 ca.
2049 thumbnail picture
Overhead view of a Coast and Geodetic Survey strong-motion accelerograph.
1936 ca.

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Last Updated:
April 30, 2013