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Magnetotelluric Data from the San Andreas Fault, Loma Prieta CA, 1989-1990; Station mt07

Dates

Publication Date
Start Date
1989-05-05
End Date
1992-04-03

Citation

Rodriguez, B.D., Brown, P.J., Johnson, M.R., McClees-Funinan, R., Powell, A.S., and Enns, K.D., 2022, Magnetotelluric Data from the San Andreas Fault, Loma Prieta CA, 1989-1990: U.S. Geological Survey data release, https://doi.org/10.5066/P9DIJHDK.

Summary

The U.S. Geological Survey (USGS) Geology, Geophysics and Geochemistry Science Center (GGGSC) collaborated with the USGS Science Analytics and Synthesis (SAS) team to preserve and release a subset of magnetotelluric data from the San Andreas Fault in Loma Prieta, California. The San Andreas Fault data were collected by the Branch of Geophysics, a precursor to the now GGGSC, between 1989 and 1994. The magnetotelluric data selected for this preservation project were collected in 1989 and 1990 using USGS portable truck mounted systems that measure the distribution of electrical conductivity beneath the surface of the earth. Truck mounted systems of this era output data to 3.5” discs, from which data were recovered and transformed to binary [...]

Contacts

Attached Files

Click on title to download individual files attached to this item.

JS0L7_1cp.bin 5 KB application/octet-stream
JS0L7_2cp.bin 5 KB application/octet-stream
JS0L7_3cp.bin 5 KB application/octet-stream
JS0L7_4cp.bin 5 KB application/octet-stream
JS0L7_33ts.bin 13 KB application/octet-stream
JS0L7_34ts.bin 13 KB application/octet-stream
JS0L7_35ts.bin 13 KB application/octet-stream
JS0L7_36ts.bin 13 KB application/octet-stream
SJ0D7_1cp.bin 5 KB application/octet-stream
SJ0D7_1cp.txt 8.91 KB text/plain
SJ0D7_1ts.bin 13 KB application/octet-stream
SJ0D7_1ts.txt 34.8 KB text/plain
SJ0D7_2cp.bin 5 KB application/octet-stream
SJ0D7_2cp.txt 8.8 KB text/plain
SJ0D7_2ts.bin 13 KB application/octet-stream
SJ0D7_2ts.txt 34.81 KB text/plain
SJ0D7_3cp.bin 5 KB application/octet-stream
SJ0D7_3cp.txt 8.86 KB text/plain
SJ0D7_3ts.bin 13 KB application/octet-stream
SJ0D7_3ts.txt 34.74 KB text/plain
SJ0D7_4cp.bin 5 KB application/octet-stream
SJ0D7_4cp.txt 8.9 KB text/plain
SJ0D7_4ts.bin 13 KB application/octet-stream
SJ0D7_4ts.txt 35 KB text/plain
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SJ0D7_5ts.txt 34.4 KB text/plain
SJ0D7_6ts.bin 13 KB application/octet-stream
SJ0D7_6ts.txt 34.8 KB text/plain
SJ0D7_7ts.bin 13 KB application/octet-stream
SJ0D7_7ts.txt 34.61 KB text/plain
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SJ0D7_8ts.txt 35.43 KB text/plain
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SJ0D7_9ts.txt 34.47 KB text/plain
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SJ0D7_10ts.txt 34.67 KB text/plain
SJ0D7_11ts.bin 13 KB application/octet-stream
SJ0D7_11ts.txt 34.17 KB text/plain
SJ0D7_12ts.bin 13 KB application/octet-stream
SJ0D7_12ts.txt 34.56 KB text/plain
SJ0D7_13ts.bin 13 KB application/octet-stream
SJ0D7_13ts.txt 33.93 KB text/plain
SJ0D7_14ts.bin 13 KB application/octet-stream
SJ0D7_14ts.txt 34.54 KB text/plain
SJ0D7_15ts.bin 13 KB application/octet-stream
SJ0D7_15ts.txt 33.88 KB text/plain
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SJ0D7_16ts.txt 34.73 KB text/plain
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SJ0D7_17ts.txt 34.34 KB text/plain
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SJ0D7_18ts.txt 34.21 KB text/plain
SJ0D7_19ts.bin 13 KB application/octet-stream
SJ0D7_19ts.txt 35.97 KB text/plain
SJ0D7_20ts.bin 13 KB application/octet-stream
SJ0D7_20ts.txt 37.08 KB text/plain
SJ0D7_21ts.bin 13 KB application/octet-stream
SJ0D7_21ts.txt 35.4 KB text/plain
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SJ0D7_22ts.txt 34.91 KB text/plain
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SJ0D7_23ts.txt 35.56 KB text/plain
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SJ0D7_24ts.txt 36.22 KB text/plain
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SJ0D7_25ts.txt 36.25 KB text/plain
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SJ0D7_26ts.txt 34.41 KB text/plain
SJ0D7_27ts.bin 13 KB application/octet-stream
SJ0D7_27ts.txt 34.66 KB text/plain
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SJ0D7_28ts.txt 36.67 KB text/plain
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SJ0D7_29ts.txt 35.09 KB text/plain
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SJ0D7_30ts.txt 34.96 KB text/plain
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SJ0D7_31ts.txt 33.39 KB text/plain
SJ0D7_32ts.bin 13 KB application/octet-stream
SJ0D7_32ts.txt 33.69 KB text/plain
SJ007_1cp.bin 10.75 KB application/octet-stream
SJ007_1cp.txt 20.87 KB text/plain
SJ007_2cp.bin 10.75 KB application/octet-stream
SJ007_2cp.txt 20.93 KB text/plain
SJ007_3cp.bin 10.75 KB application/octet-stream
SJ007_3cp.txt 20.96 KB text/plain
SJ07L_1cp.txt 8.64 KB text/plain
SJ07L_2cp.txt 8.59 KB text/plain
SJ07M_1cp.txt 8.59 KB text/plain
SJ07M_2cp.txt 8.58 KB text/plain
mt07.png
“Raster plot of the phase angle and apparent resitivity for the station.”
thumbnail 162.94 KB image/png
USA-California-San_Andreas_Fault-Loma_Prieta-1989-MT07-CP_EDI.txt 920 Bytes text/plain
USA-California-San_Andreas_Fault-Loma_Prieta-1989-MT07-CP_EDI.zip 97.75 KB application/zip
Loma_Prieta_1989_Data_Quality_site-07.csv 3.96 KB text/csv
USA-California-San_Andreas_Fault-Loma_Prieta-1989-MT07-TS_EDI.txt 2.26 KB text/plain
USA-California-San_Andreas_Fault-Loma_Prieta-1989-MT07-TS_EDI.zip 562.39 KB application/zip
Loma_Prieta_1989_site-07_Config.jpg thumbnail 1.16 MB image/jpeg
Loma_Prieta_1989_site-07_Log.jpg thumbnail 1.14 MB image/jpeg

Purpose

The magnetotelluric data that were previously locked in an inaccessible format are now readily available as a result of open-source software. The released information could help increase understanding of the San Andreas Fault system, which runs the length of California, as well as fault systems elsewhere. Seismic activity can pose potential hazards and great risk to communities in surrounding areas. Using the framework developed in this preservation effort to make more magnetotelluric data available will deepen our knowledge of fault systems and in turn benefit public welfare.

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