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

2150 thumbnail picture
Quartz horizontal magnetometer
1957 Ca.
2151 thumbnail picture
Universal gravitometer (synonymous with gravity meter - not in the sense of an instrument to measure specific gravity)
1957 Ca.
2152 thumbnail picture
Universal gravitometer (synonymous with gravity meter - not in the sense of an instrument to measure specific gravity)
2153 thumbnail picture
A seismograph record of the Long Beach Earthquake of March 10, 1933.
1957 Ca.
2154 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.
2155 thumbnail picture
Overhead view of a Coast and Geodetic Survey strong-motion accelerograph.
1936 ca.
2156 thumbnail picture
A vibration meter for recording building and ground vibrations.
1936 ca.
2157 thumbnail picture
Earthquake epicenters off the West Coast of the United States and Mexico as observed through early 1927.
1927
2158 thumbnail picture
Earthquake epicenters in the Western and Northern Pacific Ocean as of early 1927
1927
2159 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
2160 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
2161 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
2162 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
2163 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
2164 thumbnail picture
Japanese fishing vessel thrown ashore by tsunami accompanying earthquake of March 7, 1933, on the Sanriku coast of Japan.
19933 March 7
2165 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.
2166 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.
2167 thumbnail picture
The Sine galvanometer
2168 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.
2169 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.
2170 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.
2171 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.
2172 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.
2173 thumbnail picture
Observatory magnetometer Ruska type
2174 thumbnail picture
Observatory magnetometer Ruska type
2175 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.
2176 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.
2177 thumbnail picture
Observatory magnetometer Ruska type
2178 thumbnail picture
Observatory magnetometer Ruska type
2179 thumbnail picture
Magnetic instrumentation.
1957 ca.
2180 thumbnail picture
Magnetic instrumentation.
1957 ca.
2181 thumbnail picture
Magnetic instrumentation.
1957 ca.
2182 thumbnail picture
Observatory magnetometer Ruska type
2183 thumbnail picture
Horizontal intensity variometers.
2184 thumbnail picture
Horizontal intensity variometers on left
2185 thumbnail picture
Coil assembly and sensor for automatic standard magnetic observatory
2186 thumbnail picture
Coil assembly and sensor for automatic standard magnetic observatory
2187 thumbnail picture
Magnetic instrumentation.
1957 ca.
2188 thumbnail picture
Coil assembly for automatic standard magnetic observatory
2189 thumbnail picture
Coil assembly for automatic standard magnetic observatory
2190 thumbnail picture
Coil assembly for automatic standard magnetic observatory
2191 thumbnail picture
Coil assembly for automatic standard magnetic observatory
2192 thumbnail picture
Magnetic instrumentation.
1957 ca.
2193 thumbnail picture
Automatic scaling system for scaling magnetograms.
1957 ca.
2194 thumbnail picture
Automatic scaling system for scaling magnetograms.
1957 ca.
2195 thumbnail picture
Automatic scaling system for scaling magnetograms.
1957 ca.
2196 thumbnail picture
Automatic scaling system for scaling magnetograms.
1957 ca.
2197 thumbnail picture
Hand-scaling of magnetograms.
1957 ca.
2198 thumbnail picture
Hand-scaling of magnetograms.
1957 ca.
2199 thumbnail picture
Automatic scaling system for scaling magnetograms.
1957 ca.

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Last Updated:
July 7, 2015