The Atwood building is instrumented from the basement to the roof with a total of 32 accelerometer sensors. The building is located just two blocks north of the Delaney Park downhole array. Together the form a richly instrumented system that records local ground motions and building response.

The complete instrumentation details are illustrated by this diagram (courtesy of the USGS).

For more information see the USGS fact sheet:

Çelebi, M., McCarthy, J., Biswas, N., Wald, L., Page, R., and Steidl, J., 2004, Seismic Monitoring of the Atwood building in Anchorage, Alaska: U.S. Geological Survey Fact Sheet 2004-3103




​The UCSB Geotechnical Array monitoring program is jointly funded by Pacific Gas & Electric Company and the United States Geological Survey.

This site previously funded 2015 to 2017 by the NRC Contract#NRC-HQ-60-15-C-000, project title "Observations and Analysis of Geotechnical Data". And 2004 to 2014 by the Geoge E. Brown, Jr. Network for Earthquake Engineering Simulation (NEES) Program of the National Earthquake Hazards Reduction Program (NEHRP) of the National Science Foundation (NSF) under Award# CMMI-0927178.