G23A
Biddle, MT, USA
USArray Consists of Four Observatories
Transportable Array
Flexible Array
Reference Network
Magnetotelluric Array
Featured Deployments
Array of Arrays: Elusive ETS in the Cascadia Subduction Zone
The Array Operations Center supported research by the UW team, staging out of Sequim, Washington in June 2009. Eight arrays, each consisting of 10 Texan (single channel) and 10 RT130 (triple channel) data recorders were deployed across the northern Olympic Peninsula in hopes of catching the next Episodic Tremor event. Read More
Batholiths Onland 2009
In July 2009, several IRIS/PASSCAL scientists assisted with the Batholiths Onland project. This large group effort involved over 50 scientists and grad students, for the purpose of making "a seismic refraction and wide-angle reflection survey across the Coast Mountains batholith of British Columbia, Canada." Read More
Bighorns Mountains of Wyoming: Formation of Basement-involved Foreland Arches
This three year (2009-12) collaborative project will integrate arch-scale upper crustal geometries from surface exposures and petroleum industry subsurface data with the results of a hybrid seismic experiment. The passive component of this experiment consists of a 1.25 year (2009-10) deployment of 27 broadband seismometers that densify the EarthScope transportable array, a 6.5 month deployment of 220 short period seismometers, and a 9 day deployment of 800 high frequency "Texan" seismometers. Read More
USArray Status
USArray News
Students Share Their Experience Conducting Site Reconnaissance
The Transportable Array student team from Texas A&M University tell their story about conducting site reconnaissance. Read More
TV Station Highlights Episodic Tremor and Slip
A report by Q13 Fox News in Seattle-Tacoma describes EarthScope research in Cascadia. Read More
New Scientist Magazine Features EarthScope’s USArray
Listening to the Earth's deepest secrets, the cover story in the April 11 issue of New Scientist magazine, provides an in-depth look at USArray. Read More
