Although the USArray Transportable Array (TA) is winding down its operations, the IRISDMC will continue to produce and distribute its popular Ground Motion Visualization (GMV) data product that was originally designed based on the TA data. The GMVs that are produced on or after June 1, 2020, are created using a new visualization Python code that adds more flexibility to the GMV production by introducing the following advance features: utilization of all available open data from seismic stations across multiple FDSN Data Centers, enhanced graphics, use of mixed data channels, flexibility in viewport selection, use of “repeated” events to create Super GMVs, and capability to extend the GMV’s technological reach beyond the traditional seismic data. As before, the GMV product will continue to use the traditional US, North America, and Alaska viewports.
Figure 1 is a snapshot of a new vertical-component GMV generated for the January 28, 2020 magnitude 7.7 Cuba Region earthquake. This GMV (click on Figure 1 to play) was created using all openly available LHZ, BHZ or HHZ channel data that satisfied the GMV production QC criteria (see the GMV data product page). This GMV (Figure 1), in comparison to the one produced by the legacy GMV code (Figure 2), provides an improved station coverage in the western US and Canada. If needed, the flexibility in the viewport selection and access to a larger pool of stations allow visualization of the ground motion due to this earthquake at global (Figure 3) and European (Figure 4) scales.