A Continental-scale Seismic Observatory

CEUSN Working Group

The National Science Foundation, United States Geological Survey, United States Nuclear Regulatory Commission, and the Department of Energy recognized a unique opportunity to retain Transportable Array seismic stations in the Central and Eastern United States (CEUS) beyond the TA’s standard two-year deployment duration. To this end, the Central and Eastern US Network (CEUSN) was funded by the NSF to retain ~159 stations of the TA for longer-term operation. TA stations were selected for the CEUSN based on specific criteria including proximity to known regions of seismic hazard, proximity to critical facilities such as nuclear power plants. CEUSN stations were also considered in the context of the coverage provided by other regional broadband stations. Taken together, the CEUSN and other regional stations provide quite uniform coverage of the CEUS and are relevant to basic research, monitoring, and nascent scientific targets such as the recent increase in induced seismicity in the CEUS.

The Central and Eastern US Seismic Network Working Group (CEUSN WG) will review and provide advice to IRIS Management and the Instrumentation Services Standing Committee on the performance of the CEUSN as it relates to the target scientific goals and objectives. The working group should provide guidance on the CEUSN both specifically, and in the broader context of the ANSS stations operating in the CEUS. The composition of the WG is intentionally very broad, with the goal of obtaining feedback from all relevant CEUSN stakeholders, including academic, federal and state governments, and relevant policy stakeholders. The Transportable Array Manager and the Director of Instrumentation Services will be the primary IRIS staff liaisons with the Working Group, and will coordinate with the CEUSN WG Chair to develop topics and questions for review and action by the CEUSN WG.

CEUSN Stakeholder's Meeting: 11 June 2015 at IRIS Headquarters (Washington, DC)

Working Group Members:

  • Mike Brudzinski (Working Group Chair; Miami University of Ohio)
  • Won-Young Kim (Lamont-Doherty Earth Observatory, Columbia University)
  • Gail Atkinson (Western University)
  • Jim Lewkowicz (Weston Geophysical)
  • Rasool Anooshehpoor (US Nuclear Regulatory Commission)
  • Grant Bromhal (Department of Energy)
  • Chuck Langston (University of Memphis)
  • Tom Owens (University of South Carolina)
  • David Spears (VA State Geologist)
  • Tom Pratt (United States Geological Survey)

Topics the Working Group is likely to consider include:

  • General relevance of sensors employed and station performance
  • Incorporating the network into state or regional seismicity assessments
  • Convening of special sessions and/or professional meetings to foster utilization of network            

Topics the Working Group are not expected to address:

  • Specific station locations or substitutions