The UCLA Factor Building Seismic Array

Welcome to the UCLA Factor Building Seismic Array website.

The UCLA Doris and Louis Factor building, a 17-story moment-resisting steel frame structure with an embedded 72-channel accelerometer array, is one of the most heavily, permanently instrumented buildings in North America. Continuous waveform data from the building and a nearby 100-m deep borehole are being recorded by this array for use in research, educational, and public outreach projects.

This web site contains detailed information regarding the building and borehole's characteristics and instrumentation. Since 2004, the array has been operated and maintained by personnel and funds from the US Geological Survey Advanced National Seismic System (ANSS) program and the NSF Center for Embedded Networked Sensing (CENS) at UCLA.

The data are being archived at the IRIS Data Management Center where they can be requested by any user with access to the internet. If you use Factor array data, please credit the USGS ANSS program and the NSF Center for Embedded Networked Sensing at UCLA for financial support.

figure1_small_color