Data Services Newsletter

Volume 16 : No 1 : Spring 2014

Missouri S&T shear-wave splitting database

The Missouri S&T shear-wave splitting database was developed by Kelly H. Liu and Stephan S. Gao. This database uses all the available broadband seismic data archived at the IRIS DMC, from teleseismic events occurred between 1980-01-01 and early 2013 and contains over 16,000 pairs of well-defined (and manually checked) SWS measurements for the western and central United States. The result is a homogeneous database of individual (not station-averaged) splitting parameters.

This new database joins the Géosciences Montpellier SplitLab shear-wave splitting database already available from the DMC.

The Missouri S&T Shear-wave splitting database description page:
http://ds.iris.edu/ds/products/sws-db-mst/

The Missouri S&T shear-wave splitting database repository
http://ds.iris.edu/ds/products/sws-db-mst/data/repository/

Map of Missouri S&T shear-wave splitting database
A snapshot of the Missouri S&T western and central United States shear-wave splitting database. Bars are scaled to the delay time and the color indicates the fast direction range. The dotted lines show major tectonic or basement provinces.

by Manoch Bahavar and Chad Trabant (IRIS Data Management Center)