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

2050 thumbnail picture
A vibration meter for recording building and ground vibrations.
1936 ca.
2051 thumbnail picture
Earthquake epicenters off the West Coast of the United States and Mexico as observed through early 1927.
1927
2052 thumbnail picture
Earthquake epicenters in the Western and Northern Pacific Ocean as of early 1927
1927
2053 thumbnail picture
The correlation of high seismicity with the Mid-Atlantic Ridge. This map was produced in 1937. Note the refinement of earthquake zones on this map as compared to the map in image cgs02176. In: Proceedings of the American Philosophical Society, Vol. 79, No. 1, Symposium on the Exploration of the Ocean Bottom Arranged by the American Geophysical Union (April 21, 1938), pp. 97-108.
1937
2054 thumbnail picture
The correlation of high seismicity with what is now known as the Gakkel Ridge, a segment of the mid-ocean ridge system. In: Proceedings of the American Philosophical Society, Vol. 79, No. 1, Symposium on the Exploration of the Ocean Bottom Arranged by the American Geophysical Union (April 21, 1938), pp. 97-108. The first hint that the Mid-Atlantic Ridge continued through the Arctic Ocean.
1937
2055 thumbnail picture
"Earthquake Zones", world seismicity map clearly showing the correlation of the Pacific Ring of Fire with earthquake epicenters, the Alpine-Himalayan Belt, and the coincidence of major portions of the mid-ocean ridge system with areas of seismicity. Map published in The Geographical Review, Vol. XXV, No. 1, 1935, Pl. 1.
1935
2056 thumbnail picture
A median section through the earth showing composition of the interior and transmission of earthquake waves. In: Earthquakes and Astronomy" by N. H. Heck. Published in: The Sky, March 1937. P. 14.
1937
2057 thumbnail picture
Newly uplifted seafloor along fault-line in SE Alaska. The beach was elevated 47 feet 4 inches on the west side of Disenchantment Bay. Yakutat Bay earthquake of September 1899.
1899
2058 thumbnail picture
Japanese fishing vessel thrown ashore by tsunami accompanying earthquake of March 7, 1933, on the Sanriku coast of Japan.
19933 March 7
2059 thumbnail picture
A magnetic instrument. The Coast and Geodetic Survey was the Nation's primary geophysical agency until the early 1970's when its geomagnetic duties were transferred to the USGS.
1957 ca.
2060 thumbnail picture
A magnetic instrument The Coast and Geodetic Survey was the Nation's primary geophysical agency until the early 1970's when its geomagnetic duties were transferred to the USGS.
1957 ca.
2061 thumbnail picture
The Sine galvanometer
2062 thumbnail picture
A magnetic instrument The Coast and Geodetic Survey was the Nation's primary geophysical agency until the early 1970's when its geomagnetic duties were transferred to the USGS.
1957 ca.
2063 thumbnail picture
Magnetic instruments The Coast and Geodetic Survey was the Nation's primary geophysical agency until the early 1970's when its geomagnetic duties were transferred to the USGS.
1957 ca.
2064 thumbnail picture
Various magnetic instruments The Coast and Geodetic Survey was the Nation's primary geophysical agency until the early 1970's when its geomagnetic duties were transferred to the USGS.
1957 ca.
2065 thumbnail picture
Operating magnetic instruments The Coast and Geodetic Survey was the Nation's primary geophysical agency until the early 1970's when its geomagnetic duties were transferred to the USGS.
1957 ca.
2066 thumbnail picture
A magnetic instrument The Coast and Geodetic Survey was the Nation's primary geophysical agency until the early 1970's when its geomagnetic duties were transferred to the USGS.
1957 ca.
2067 thumbnail picture
Observatory magnetometer Ruska type
2068 thumbnail picture
Observatory magnetometer Ruska type
2069 thumbnail picture
Magnetic instrumentation. The Coast and Geodetic Survey was the Nation's primary geophysical agency until the early 1970's when its geomagnetic duties were transferred to the USGS.
1957 ca.
2070 thumbnail picture
Magnetic instrumentation. The Coast and Geodetic Survey was the Nation's primary geophysical agency until the early 1970's when its geomagnetic duties were transferred to the USGS.
1957 ca.
2071 thumbnail picture
Observatory magnetometer Ruska type
2072 thumbnail picture
Observatory magnetometer Ruska type
2073 thumbnail picture
Magnetic instrumentation.
1957 ca.
2074 thumbnail picture
Magnetic instrumentation.
1957 ca.
2075 thumbnail picture
Magnetic instrumentation.
1957 ca.
2076 thumbnail picture
Observatory magnetometer Ruska type
2077 thumbnail picture
Horizontal intensity variometers.
2078 thumbnail picture
Horizontal intensity variometers on left
2079 thumbnail picture
Coil assembly and sensor for automatic standard magnetic observatory
2080 thumbnail picture
Coil assembly and sensor for automatic standard magnetic observatory
2081 thumbnail picture
Magnetic instrumentation.
1957 ca.
2082 thumbnail picture
Coil assembly for automatic standard magnetic observatory
2083 thumbnail picture
Coil assembly for automatic standard magnetic observatory
2084 thumbnail picture
Coil assembly for automatic standard magnetic observatory
2085 thumbnail picture
Coil assembly for automatic standard magnetic observatory
2086 thumbnail picture
Magnetic instrumentation.
1957 ca.
2087 thumbnail picture
Automatic scaling system for scaling magnetograms.
1957 ca.
2088 thumbnail picture
Automatic scaling system for scaling magnetograms.
1957 ca.
2089 thumbnail picture
Automatic scaling system for scaling magnetograms.
1957 ca.
2090 thumbnail picture
Automatic scaling system for scaling magnetograms.
1957 ca.
2091 thumbnail picture
Hand-scaling of magnetograms.
1957 ca.
2092 thumbnail picture
Hand-scaling of magnetograms.
1957 ca.
2093 thumbnail picture
Automatic scaling system for scaling magnetograms.
1957 ca.
2094 thumbnail picture
Components of an automated magnetic observatory
1957 ca.
2095 thumbnail picture
Components of an automated magnetic observatory
1957 ca.
2096 thumbnail picture
Components of an automated magnetic observatory
1957 ca.
2097 thumbnail picture
Components of an automated magnetic observatory
1957 ca.
2098 thumbnail picture
Components of an automated magnetic observatory
1957 ca.
2099 thumbnail picture
Components of an automated magnetic observatory
1957 ca.

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Last Updated:
April 30, 2013