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

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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Update from IRIS President Bob Detrick – September 2014

Thu, 18 Sep 2014 15:00:00 -0400

I’ve been at IRIS a little over four months now, and this seems like a good time to give you a report on my initial impressions of IRIS and plans for the coming year.
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IRIS Board of Directors Appoints a Nominations Committee for 2014 Elections

Wed, 03 Sep 2014 17:10:00 -0400

All Member Representatives are encouraged to contact the Nominations Committee to provide suggestions for candidates for the open positions.
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