The model integrates local earthquake and teleseismic travel-time data into one inversion to constrain the P-wave velocity structure of Yellowstone from the upper mantle to the upper crust. Data include 47,815 P-wave first arrivals from 4,520 local earthquakes and 4,605 relative arrival times from 329 teleseismic earthquakes recorded by 80 stations from the Yellowstone, Teton, and Snake River Plain regional seismic networks, the NOISY array, and the EarthScope USArray.

Figure P-wave velocity structure of Yellowstone shown in map view at depths of  8 km (left) and 35 km (middle), and in cross-section AA' (right), revealing two crustal magma reservoirs beneath the caldera.

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Related link

  • Huang, H.-H., F.-C. Lin, B. Schmandt, J. Farrell, R. B. Smith, and V. C. Tsai (2015), The Yellowstone magmatic system from the mantle plume to the upper crust, Science, 348, doi:10.1126/science.aaa5648