Geophysical imaging of a tilted mantle plume extending at least 500 km beneath the
Yellowstone caldera provides compelling support for a plume origin of the entire …

Surface velocities derived from GPS observations from 1993 to 2011 at several hundred
sites across the deforming northwestern United States are used to further elucidate the …

The pattern of mantle flow in subduction systems and the processes that control the mantle
flow field represent fundamental but still poorly understood aspects of subduction dynamics …

The circular pattern of anisotropic fast-axis orientations of split SKS arrivals observed in the
western US cannot be attributed reasonably to either preexisting lithospheric fabric or to …

Rapid surface uplift or subsidence and voluminous magmatic activity have often been
ascribed to regional-scale downwelling of lithospheric mantle. However, because …

Surface wave dispersion measurements from ambient seismic noise and array‐based
measurements from teleseismic earthquakes observed with the EarthScope/USArray …

Mantle flow associated with the Cascadia subduction zone and the Mendocino Triple
Junction is poorly characterized due to a lack of shear wave splitting studies compared to …

Multiple episodes of Oligocene and younger silicic volcanism are represented in the high
lava plateau of central and southeastern Oregon. From 12 Ma to Recent, volcanism is …

The tectonic and geologic setting of eastern Oregon includes the volcanically active High
Lava Plains (HLP) province and the accreted terrains of the Blue and Wallowa Mountains …

We used 190,947 high-quality P-wave arrival times from 8421 local earthquakes and
1,098,022 precise travel-time residuals from 6470 teleseismic events recorded by the …