Seismotectonics and stress field of the Yellowstone volcanic plateau from earthquake first-motions and other indicators

  title={Seismotectonics and stress field of the Yellowstone volcanic plateau from earthquake first-motions and other indicators},
  author={Gregory P. Waite and Robert B. Smith},
[1] We have found spatial variations in seismic stress indicators at the Yellowstone volcanic field, Wyoming, by examining source mechanisms of 25 years of networkrecorded earthquakes, 1973–1998. Yellowstone seismicity is characterized by swarms of earthquakes (MC < 3) within the 0.64 Ma Yellowstone caldera and between the caldera and the eastern end of the 44-km-long rupture of the 1959MS7.5 Hebgen Lake earthquake. We relocated more than 12,000 earthquake hypocenters using three-dimensional… CONTINUE READING


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