Data Services Products: EMC-Carib.Pwave.Harris.Miller.Porritt.2018 3D P-wave velocity model of the Caribbean mantle from teleseismic tomography

Summary

The Carib.Pwave.Harris.Miller.Porritt.2018 model incorporates broadband seismic data from 130 seismic stations deployed and maintained by multiple networks between 2000 to 2017. Data from 535 teleseismic earthquakes Mw>5.5 were to picked for P and PP to image the P wave velocity structure of the Caribbean mantle.

Description

Name Carib.Pwave.Harris.Miller.Porritt.2018
Title 3D P-wave velocity model of the Caribbean mantle from teleseismic tomography
Type 3-D Tomography Earth Model
Sub Type P-wave velocity perturbation (%)
Year 2018
Data Revision r0.0 (revision history)
 
Short Description   The model incorporates broadband seismic data from 130 seismic stations deployed and maintained by multiple networks between 2000 to 2017. Data from 535 teleseismic earthquakes Mw>5.5 were to picked for P and PP to image the P wave velocity structure of the Caribbean mantle.
 
Authors: Cooper W. Harris, Department of Earth Sciences, University of Southern California, 3651 Trousdale Pkwy, Los Angeles, CA, 90039 USA

Meghan S. Miller, Research School of Earth Sciences, The Australian National University, 142 Mills Rd Canberra, ACT, 2600 Australia

Robert W. Porritt, Jackson School of Geosciences, The University of Texas, 23 San Jacinto Blvd Austin, TX, 78712, USA
 
Previous Model N/A
 
Model Download Harris-etal.2018-carib-dvp.r0.0.csv the originial model in GeoCSV format
Harris-etal.2018-carib-dvp.r0.0.nc (see metadata) is the netCDF 3 Classic file for the model.
 
Depth Coverage 0 km to 1000 km (bsl)
 
Area Caribbean (latitude: 7.5°N/20.5°N, longitude: 286.5°E/301E°)
 
Data Set Description [Harris et al., (2018)] The dataset includes the multi-frequency compression tomography model – relative P-wave velocity perturbations – for mantle structure beneath the Caribbean. The data used for the P wave model includes ~20,000 manually measured traveltime residuals, which reflect the difference between observed traveltimes and values predicted using the radially symmetric iasp91 global velocity model. 17,491 were measured from teleseismic P waves and 1,638 were measured from teleseismic PP waves.
 
 

Plan view depth slices of the P wave tomographic model
Plan view depth slices of the P wave tomographic model. Slices are taken at the depth value displayed in the upper right-hand corner of each panel. Relative P wave velocity perturbations are plotted per the color scale beneath the figure. Coastlines are plotted for visual reference. High velocity features are labeled in white font: HF = Hispaniola fragment; NLA = northern Lesser Antilles slab; SLA = southern Lesser Antilles slab; SC = Southern Caribbean lithosphere. Discontinuities in the overall Lesser Antilles slab are labeled in black font. Modified from Harris et al. (2018) Figure 6.

Citations and DOIs

To cite the original work behind this Earth model:

  • Harris, C. W., Miller, M. S. & Porritt, R. W. (2018). Tomographic Imaging of Slab Segmentation and Deformation in the Greater Antilles, Geochemistry, Geophysics, Geosystems 19, 2292-2307. https://doi.org/10.1029/2018GC007603.

To cite IRIS DMC Data Products effort:

  • Trabant, C., A. R. Hutko, M. Bahavar, R. Karstens, T. Ahern, and R. Aster (2012), Data Products at the IRIS DMC: Stepping Stones for Research and Other Applications, Seismological Research Letters, 83(5), 846–854, https://doi.org/10.1785/0220120032.

DOI for this EMC webpage: https://doi.org/10.17611/dp/emc.2021.caribpwave2018.1

Credits

  • r0.0 model provided by Meghan Miller.

Revision History

revision r0.0: uploaded August 10, 2021.

Timeline

2021-08-13
online

Categories

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