The USArray component of the NSF-funded EarthScope project ended its observational period in September 2021 and all remaining close-out tasks concluded in March 2022. Hundreds of seismic stations were transferred to other operators and continue to collect scientific observations. This USArray.org website is now in an archival state and will no longer be updated. To learn more about this project and the science it continues to enable, please view publications here: http://usarray.org/researchers/pubs and citations of the Transportable Array network DOI 10.7914/SN/TA.

To further advance geophysics support for the geophysics community, UNAVCO and IRIS are merging. The merged organization will be called EarthScope Consortium. As our science becomes more convergent, there is benefit to examining how we can support research and education as a single organization to conduct and advance cutting-edge geophysics. See our Joining Forces website for more information. The site earthscope.org will soon host the new EarthScope Consortium website.

USArray
A Continental-scale Seismic Observatory

Publications

Alaska Transportable Array

EarthScope's Transportable Array Spans Alaska, the Last Frontier
4 MB
Fall 2021
EarthScope's Transportable Array Spans Alaska, the Last Frontier
2 MB
Fall 2019
EarthScope's Transportable Array Spans Alaska, the Last Frontier
2 MB
Fall 2018

EarthScope's Transportable Array Spans Alaska, the Last Frontier
3 MB pdf
Fall 2017
Opportunities for EarthScope Science in Alaska in Anticipation of USArray
3 MB pdf
October 2011
EarthScope TA Plan of Development
9 MB pdf
March 2015
 
Host a TA Station
6 MB pdf
February 2015
 
From Crust to Core:
EarthScope comes to
Yukon
4 MB pdf
April 2015
 
From Crust to Core:
EarthScope comes to
Alaska
2 MB pdf
March 2015

 
EarthScope in the Ahtna, Inc. Region
3 MB pdf
March 2014
 

EarthScope in the Aleut Corp. Region
2 MB pdf
March 2014
 
EarthScope in the Arctic Slope Region
2 MB pdf
March 2014
 
EarthScope in the Bering Straits Region
3 MB pdf
March 2014
 

EarthScope in the Bristol Bay Region
3 MB pdf
March 2014
 
EarthScope in the Calista Corp. Region
2 MB pdf
March 2014
 
EarthScope in the Chugach Region
4 MB pdf
March 2014
 
EarthScope in the Cook Inlet Region
3 MB pdf
March 2014
 
EarthScope in the Doyon, Limited Region
2 MB pdf
March 2014
 
EarthScope in the Koniag, Inc. Region
3 MB pdf
March 2014
 
EarthScope in the NANA Region
3 MB pdf
March 2014
 
EarthScope in the Sealaska Corp. Region
2 MB pdf
March 2014
 

General USArray

Episodic Tremor and Slip
2.0 MB pdf
March 2011

 

USArray: The First Five Years
6.0 MB pdf
April 2009

 

Seismic Tomography
1.2 MB pdf
September 2008

 

Hosting Geophysical Instruments for EarthScope Experiments
467 KB pdf
July 2008

 

Where can I learn more about USArray?
1.2 MB pdf
March 2008

 

onSite, News from USArray

onSite
1 MB pdf
Fall 2012

Visit the onSite Archive to download previous issues!

onSite is a publication for hosts of Transportable Array stations and the general public.

USArray Instrumentation Descriptions

Transportable Array
1.7 MB pdf
September 2007

 

Flexible Array
4.3 MB pdf
September 2007

 

Reference Network
2.5 MB pdf
September 2007

 

Permanent Seismic Network: An Integrated Resource
485 KB pdf

 

Transportable Array


 

 Central and Eastern
US Network (CEUSN)
5 MB
July 2019

Transportable Array Design & Implementation
39.8 MB pdf
November 2018

 

Transportable Seismic Network: Alaska
2 MB pdf
March 2013

 

Participating in EarthScope: Hosting a Transportable Seismic Station
1.0 MB pdf
April 2011

 

Transportable Seismic Network: Imaging Earth's Interior
2.0 MB pdf
April 2011

 

Developing Cooperative Research and Educational Seismic Stations
650 KB pdf
April 2010

 

Education and Research Network Support Services
440 KB pdf
November 2008

 

General EarthScope

inSights, the EarthScope Newsletter

Download inSights from the EarthScope web site!

inSights provides the science community with a regular forum for news and exciting science from the EarthScope program.

EarthScope Pamphlet
5.5 MB pdf
Spring 2009

EarthScope: Reassembling a Continent in Motion (Geotimes Article)
5.1 MB pdf
April 2002

USArray Program Documents

USArray Products Workshop Report
648 KB pdf
October 2004

 

 

USArray Data Management Plan
383 KB pdf
August 2004

 

USArray: A Synoptic Investigation of the Structure, Dynamics, and Evolution of the North American Continent
896 KB pdf
November 2000

 

USArray Initiative (GSA Today Article)
2.5 MB pdf
November 1999

 

EarthScope Program Documents

SAGE Proposal
Volume 1 (16.6 MB pdf)

 

USArray O&M Award (FY08-13) Final Report
Low Resolution (4.9 MB pdf)
High Resolution (46.8 MB pdf)
December 2014

 

EarthScope O&M Proposal
Volume I (9.2 MB pdf)
Volume II (2.7 MB pdf)
Volume III (18.0 MB pdf)
March 2007

 

EarthScope Education and Outreach Implementation Plan
432 KB pdf
February 2007

 

USArray EFEC Site Review
12.6 MB pdf
May 2006

 

The EarthScope Portal
1.0 MB pdf
October 2004

EarthScope MREFC Proposal
7.0 MB pdf
January 2003

 

EarthScope Education & Outreach Program Plan
1.6 MB pdf
November 2002

 

EarthScope Workshop Report: Scientific Targets for the World's Largest Observatory Pointed at the Solid Earth
2.3 MB pdf
March 2002

 

EarthScope Project Plan
2.5 MB pdf
October 2001

 

A New View Into Earth
1.5 MB pdf
April 2001

Archived USArray Webpages

Instrumentation

Siting Stations