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High-resolution seismic imaging data acquired in 2021 across a trace of the San Andreas Fault at Mee Ranch, Monterey County, California
In April of 2021, the U.S. Geological Survey conducted a high-resolution seismic survey at Mee Ranch in Monterey County, California. Both passive- and active-source seismic data were acquired using DTCC SmartSolo 3-component nodal seismograph systems ("nodes"), which continuously recorded data at rates up to 2000 samples per second. For passive-source acquisition, a 6x5 grid of nodes was deployed for several weeks before and during the active source shooting. For active-source acquisition, 395 nodes were deployed 1 meter apart (2 meters apart near the endpoints) along a southwest-northeast trend to create an approximately 500-m-long linear array. Additional nodes were deployed at 1 or 2 meter spacing along 25- and 50-m-long linear arrays centered about a known section of the fault. P-wave data were generated near each recording station of the main linear array using a Betsy seisgun firing an 8-gauge blank shotgun shell. P-wave data were also generated every 20 stations along the main linear array using approximately one/third pound of buried explosives. Fault-zone-guided-wave data were generated using explosive sources that were placed within a mapped trace of the San Andreas Fault zone and close to the shorter linear arrays. Finally, S-wave data were generated at each station using an aluminum block struck by a sledgehammer. Shot gathers were created in SEG-Y format (Barry et al, 1975) by extracting several seconds of data from each node for each recorded shot time. The passive grid data were converted to gain-corrected miniseed day files (Ahern and Dost, 2012). This report provides the metadata needed to analyze the seismic data.
| Author(s) |
Mark R Goldman |
| Publication Date | 2023-09-26 |
| Beginning Date of Data | 2021-03-24 |
| Ending Date of Data | 2021-04-09 |
| Data Contact | |
| DOI | https://doi.org/10.5066/P9K7QLDL |
| Citation | Goldman, M.R., Catchings, R.D., Nevitt, J.M., Chan, J.H., Sickler, R.R., Criley, C.J., Clarke, T., Brooks, B.A., and Ericksen, T.L., 2023, High-resolution seismic imaging data acquired in 2021 across a trace of the San Andreas Fault at Mee Ranch, Monterey County, California: U.S. Geological Survey data release, https://doi.org/10.5066/P9K7QLDL. |
| Metadata Contact | |
| Metadata Date | 2023-09-26 |
| Related Publication | There was no related primary publication associated with this data release. |
| Citations of these data | No citations of these data are known at this time. |
| Access | public |
| License | http://www.usa.gov/publicdomain/label/1.0/ |
Harvest Date: 2024-07-30T04:03:30.725Z