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Multichannel Seismic-Reflection and Navigation Data Collected Using SIG ELC1200 and Applied Acoustics Delta Sparkers and Geometrics GeoEel Digital Streamers During U.S. Geological Survey Field Activity 2020-014-FA, Southwest of Puerto Rico, March 2020

Dates

Publication Date
Start Date
2020-03-07
End Date
2020-03-13

Citation

Baldwin, W.E., Chaytor, J.D., Foster, D.S., Moore, E.M., Nichols, A.R., and ten Brink, U.S., 2021, Multichannel seismic-reflection and navigation data collected using SIG ELC1200 and Applied Acoustics Delta Sparkers and Geometrics GeoEel Digital Streamers during U.S. Geological Survey Field Activity 2020-014-FA, southwest of Puerto Rico, March 2020: U.S. Geological Survey data release, https://doi.org/10.5066/P96GY6TQ.

Summary

In March 2020, the U.S. Geological Survey and the University of Puerto Rico Mayagüez (UPRM) Department of Marine Sciences conducted a marine seismic-reflection experiment focused on observing geophysical evidence of submarine faulting and mass wasting related to the southwestern Puerto Rico seismic sequence of 2019–20. The seismic sequence culminated with a magnitude 6.4 earthquake centered beneath Guayanilla Canyon on January 7, 2020 and caused shoreline subsidence, rockfalls, and considerable damage to buildings. The survey was conducted during March 7–13 out of the UPRM Isla Magueyes Laboratories aboard the research vessel Sultana. Approximately 226 line kilometers of multichannel seismic reflection data were collected across the [...]

Contacts

Attached Files

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

2020-014-FA_MCS_cmpnav.csv
“Comma-separated formatted text file containing all MCS CMP points.”
19.5 MB text/csv
2020-014-FA_MCS_shtnav.csv
“Comma-separated formatted text file containing all MCS shot points.”
7.48 MB text/csv
2020-014-FA_MCS_Images.zip
“Compressed zip archive of processed MCS seismic profile images in PNG format.”
322.1 MB application/zip

“Compressed zip archive of processed MCS seismic profiles in SEG-Y format.”
1.35 GB application/zip
2020-014-FA_MCSBrowseImage.jpg
“2020-014-FA MCS data release collage.”
thumbnail 562.03 KB image/jpeg
Shapefile: 2020-014-FA_MCS_cmp500.zip
2020-014-FA_MCS_cmp500.cpg 5 Bytes
2020-014-FA_MCS_cmp500.dbf 399.98 KB
2020-014-FA_MCS_cmp500.prj 145 Bytes
2020-014-FA_MCS_cmp500.sbn 2.76 KB
2020-014-FA_MCS_cmp500.sbx 340 Bytes
2020-014-FA_MCS_cmp500.shp
“Shapefile containing MCS CMP points (500 CMP reference interval).”
7.04 KB
2020-014-FA_MCS_cmp500.shx 2.08 KB
Shapefile: 2020-014-FA_MCS_cmpTracklines.zip
2020-014-FA_MCS_cmpTracklines.cpg 5 Bytes
2020-014-FA_MCS_cmpTracklines.dbf 24.81 KB
2020-014-FA_MCS_cmpTracklines.prj 145 Bytes
2020-014-FA_MCS_cmpTracklines.sbn 308 Bytes
2020-014-FA_MCS_cmpTracklines.sbx 132 Bytes
2020-014-FA_MCS_cmpTracklines.shp
“Shapefile containing MCS CMP tracklines.”
1.72 MB
2020-014-FA_MCS_cmpTracklines.shx 252 Bytes

Purpose

This dataset contains source shot, common mid-point (CMP) and trackline navigation, profile images, and SEG-Y trace data for approximately 227 km of multichannel seismic-reflection data collected by the U.S. Geological Survey during USGS field activity 2020-014-FA offshore of southwest Puerto Rico. Images of each seismic profile were generated in order to provide portable and easily viewable alternatives to the SEG-Y versions of the data. Each profile image can be hyperlinked to its corresponding trackline navigation contained within the Esri polyline shapefile '2020-014-FA_MCS_cmpTracklines.shp'. CMP and tick marks along the top of the PNG images correlate to the positions of 500 CMP intervals within the Esri point shapefile '2020-014-FA_MCS_cmp500.shp'. This information allows for spatial correlation of MCS seismic-reflection profiles images with other geophysical and sample data for investigating sea-floor morphology and stratigraphy in the area.

Additional Information

Identifiers

Type Scheme Key
DOI https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/P96GY6TQ

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