USArray

USARRAY is one of the three components of the Earthscope project, funded by the National Science Foundation and conducted in partnership with the USGS and NASA. A major goal of USARRY is to collect detailed seismic images of the North American lithosphere. The data collected from USARRAY will be integrated with geologic observations made on the earth's surface to help determine the geologic history of North America, as well as to better understand that geologic processes that are at work today.

The instrumentation of USARRAY will consist of a portable array of 400 sesimometers that will be deployed across the United States over a 10 year period. In addition a "flexible component" array will be available to be deployed in areas where a denser network of seismometers is required. A permenant array of seismometers that is currently maintained by the USGS will also be augmented.