Articles | Earthscope

Geodetic GPS station P311 atop the Sierra Nevada mountains at Coyote Ridge, at an elevation of 3,699 meters, near Bishop, California. This station and many others show that these mountains are currently uplifting at 1–2 millimeters per year. (Image courtesy of Shawn Lawrence, UNAVCO.)

Exploring a Changing Continent Using a Plate Boundary Observatory

Science, PBO, Newsletters, Facility Updates

2019-02-14

(Photo above: Geodetic GPS station P311 atop the Sierra Nevada mountains at Coyote Ridge, at an elevation of 3,699 meters, near Bishop, California. This station and many…, ,

(Map: EarthScope Plate Boundary Observatory GPS stations have offered an unprecedented, comprehensive view of western U.S. tectonics. This poster captures only a sampling of…, , ,

(Map: “Slow earthquakes,” or episodic tremor and slip (ETS), in the Pacific Northwest. Colored dots on the map on the left represent small, unfelt earthquakes (tremor), color-…, ,

Tectonic motion is not the only motion that shows up in PBO sites. The solid Earth rises and falls in response to loading and unloading from changes in groundwater, surface water…, , ,

(Measurements of vertical motion of the surface at GPS/GNSS stations in the western U.S. The drought during this time period shows up most notably in California, as uplift (red…,

Other researchers used this hydrologic information to examine rates of earthquakes along the faults in California, finding that a comparison of the earthquakes with the GPS data…,

Fifteen Years of Earth Science Exploration

SAFOD, Science, Science Nuggets, USArray, PBO, Newsletters, Education

2019-02-14

The EarthScope National Office

Transportable Array project staff in 2013.

Reflections on the Accomplishments of EarthScope’s USArray

Science, USArray, Newsletters, Education, Facility Updates

2019-02-14

Photo above: On September 30, 2013, the Transportable Array project staff gathered for a science symposium held at Woods Hole Oceanographic Institution to commemorate the…, ,

Figure 1: USArray in the Lower 48 U.S. and Southeastern Canada. Transportable Array (TA) stations (red), Flexible Array (FA) stations (blue), and Magnetotelluric (MT)…, , ,

Figure 2: USArray in Alaska and Northwestern Canada. The Transportable Array (TA) (red) and Flexible Array (blue) stations were deployed here between 2014–2017. The TA…, , Transportable Array

The Transportable Array was envisioned as a footprint of approximately 400 broadband seismometers, spaced at about 70 km, which would roll from west…