In his address to the Seismological Society of America at our Annual Meeting in Victoria last April, U.S. Geological Survey Director Charles (Chip) Groat gave us renewed confidence that the time for the Advanced National Seismic System (ANSS) to move from promise to reality is now. As most of you know, the ANSS will be a nationwide network of 7,000 seismographs and strong-motion instruments, both on the ground and in buildings, that will provide scientists and engineers with the digital-quality data that are so desperately needed to understand ground-motion and building-response processes. ANSS is also critical for emergency response, providing...

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