USArray
A Continental-scale Seismic Observatory

Featured Deployments

Bighorns Mountains of Wyoming: Formation of Basement-involved Foreland Arches

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

Batholiths Onland 2009

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

Array of Arrays: Elusive ETS in the Cascadia Subduction Zone

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

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USArray Status

USArray Status

USArray News

Subduction Zone Observatory Special Interest Group Discussion at 3:30pm, Thursday, Dec 18

Mon, 01 Dec 2014 12:10:00 -0500

The discussion will focus on the creation of a Subduction Zone Observatory (SZO).
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Attend the IRIS Membership Meeting on Monday, December 15 in San Francisco

Wed, 26 Nov 2014 10:16:00 -0500

The Annual Membership Meeting will take place at the City Club of San Francisco. Please note that we are meeting at a different venue than previous years.
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IRIS Announces 2014 Slate of Candidates

Wed, 12 Nov 2014 01:37:00 -0500

The IRIS Nominations Committee has announced the slate of candidates to fill several positions on the Board of Directors. Information about the candidates and the upcoming Annual Membership Meeting of the IRIS Consortium is available here.
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