Earth & Planets Laboratory
Carnegie DTM
Between 1965 and 2003, the Carnegie Institution of Washington’s Department of Terrestrial Magnetism operated a continuous network of nine broadband seismographs with a cluster in South America and Japan, and stations in Iceland, Papua New Guinea, and Washington, D.C. The Carnegie seismographs designed in the 1960s by Selwyn Sacks were among the earliest broadband instruments and designed to record ground motion from 30 s and ∼ 30 Hz with high dynamic range and low distortion.
Stations
Region | Location | Code | Latitude | Longitude | Timespan | Components |
---|---|---|---|---|---|---|
Andes | Cusco, Peru | CUS | -13.563 | -71.877 | 1966–1986 | 3 |
Toconce, Chile | TCC | -22.275 | -68.172 | 1965–1971 | 3 | |
Trujillo, Peru | TRU | -8.078 | -78.861 | 1967–1986 | 1 | |
Japan | Kamikineusu | KMU | 42.238 | 142.967 | 1967–1996 | 3 |
Matsushiro | MAT | 36.543 | 138.207 | 1967–1984 | 3 | |
Sawauchi | SWU | 39.490 | 140.790 | 1984–1996 | 3 | |
Other | Akureyri, Iceland | AKU | 65.686 | -18.099 | 1972–2003 | 3 |
Port Moresby, Papua New Guinea | PMG | -9.406 | 147.159 | 1966–1992 | 1 | |
Washington DC | DTM | 38.959 | -77.063 | 1966–1994 | 3 |
Instrumentation
Broadband. See Sacks (1966).
Recording Medium
Magnetic tape – unmodulated with ACC bias.
Data Availability
Data will be made available in SEED format through IRIS DMC.
See Supplement in Golden et al. (2020) for information on digitization of AKU, CUZ, and MAT.
Contact
For more information about this collection, please contact: < blank >
References
Golden, S., L. S. Wagner, B. Schleigh, D. Power, D. C. Roman, S. I. Sacks, and H. Janiszewski (2020). Digitization of the Carnegie Analog Broadband Instruments Tape Records (1965–1996), Seismol. Res. Lett. 91, 1441–1451, doi: 10.1785/0220190334.
Sacks, I. S. (1966). A Broad-band large dynamic range seismograph, in The Earth beneath the Continents, J. S. Steinhart and T. J. Smith (Editors), Geophysical Monograph, Vol. 10, American Geophysical Union, Washington, D.C., 543–553, doi: 10.1029/GM010p0543.