Data Services Products: EMC-US-SL-2014 P and S teleseismic body-wave tomography of the mantle beneath the United States


US-SL-2014 model, Schmandt & Lin (2014), is a P and S teleseismic body-wave tomography of the mantle beneath the United States.


Name US-SL-2014
Title P and S teleseismic body-wave tomography of the mantle beneath the United States
Type 3-D Tomography Earth Model
Sub Type P and S velocity perturbations(%)
Year 2014
Teleseismic travel-time residuals from the EarthScope Transportable Array and more than 1900 additional stations are inverted for 3-D velocity perturbations. The inversion uses frequency-dependent 3-D sensitivity kernels to map travel-time residuals, measured in multiple frequency bands, into velocity structure. A surface-wave tomography starting model was used to mitigate the potential for crustal structure to create artifacts at mantle depths.
Brandon Schmandt
  Department of Earth and Planetary Science
  University of New Mexico
Fan-Chi Lin
  Department of Geology and Geophysics
  University of Utah
Previous Model wUS-SH-2010
Reference Model N/A
Model Download (see metadata ), is the netCDF file for the model
Model Homepage
Depth Coverage 60 — 1220 km
Areal Coverage The contiguous United States (approx. 24° to 50° Latitude and -125° to -67° Longitude)
Data Set Description The dataset includes 516,688 multi-frequency P-wave travel time residuals and 223,462 S-wave travel time residuals.
Supplemental Information

Tomography maps of the shallow upper mantle
[Schmandt & Lin, 2014] Tomography maps of the shallow upper mantle. A) P-wave tomography at a depth of 75 km. The black dashed lines indicate Precambrian rift margins, and the white dashed line denotes the Rocky Mountain front. The locations of low-velocity anomalies beneath the central Appalachians (CAA) and northern Appalachians (NAA) are labeled in panel (D). B) S-wave tomography at 75 km depth. C) P-wave tomography at 200 km depth. D) S-wave tomography at 200 km depth.

Citations and DOIs

To cite the original work behind this Earth model:

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,

DOI for this EMC webpage:


Model provided by Brandon Schmandt


US-SL-2014 online : US-SL-2014 model added to EMC


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