International Federation of Digital Seismograph Networks

TA: USArray Transportable Array

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FDSN Network Information

FDSN code TA Operated by IRIS Transportable Array (IRIS_TA)
Network name USArray Transportable Array (EarthScope_TA) Deployment region United States
Start date Jan. 1, 2003 End date Sept. 30, 2019
Network Website
Short description

The National Science Foundation sponsored EarthScope Transportable Array consists of over 400 broadband seismic stations that migrate across 1700 locations in the continental US from West to East and then to Alaska. Each station is occupied for 18-24 months with station separation of about 70km. All data is open and freely available via IRIS DMC.

Citation Information

Digital Object Identifier (DOI)
IRIS Transportable Array (2003): USArray Transportable Array. International Federation of Digital Seismograph Networks. Other/Seismic Network. 10.7914/SN/TA
Citation notes

EarthScope Transportable Array is sponsored by the National Science Foundation and operated by the Incorporated Research Institutions for Seismology (IRIS).

Data Access

Data Availability

Data available from IRISDMC (IRIS Data Management Center) using FDSN Web Services. See for more information including data access tools.

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Stations in this Network