1. J. Louie 12/10/2003 Using Refraction Microtremor reconnaissance:  Rapid surveys take advantage of urban noise  More details at www.seismo.unr.edu/hazsurv Surveying Seismic Microzonation in Urban Areas

2. J. Louie 12/10/2003 ReMi measures Rayleigh dispersion with linear refraction arrays (paper by Louie, April 2001 BSSA). Refraction Microtremor for Shallow Shear Velocity 100-m depth resolution Initial funding from SCEC, UNR, VUW, Optim LLC

3. J. Louie 12/10/2003 ReMi has classified hard and soft sites around the world by measuring V 30, average shear velocity to 30 m depth. Refraction Microtremor for Shallow Shear Velocity

4. J. Louie 12/10/2003 Local reconnaissance was first test. Reno Transect Supported by UNR and IRIS-PASSCAL

5. J. Louie 12/10/2003 Unexpected results: high V 30 in active alluvium. Reno Transect WestEast Ta

6. J. Louie 12/10/2003 Lack of V 30 correlation to geologic or soil maps Reno Transect Only Tertiary Andesite (Ta) shows a characteristic V 30

7. J. Louie 12/10/2003 The First Reno Hazard Map

8. J. Louie 12/10/2003 July 2003 San Gabriel Valley & Los Angeles Shallow Shear-Velocity Transects B C D E Transect mapped on NEHRP hazard class map by Wills, from SCEC Phase 3 Report Supported by USGS, NEHRP ERP and IRIS-PASSCAL

9. J. Louie 12/10/2003 200 shallow Vs profiles from San Gabriel Riv. Los Angeles Transect San Gabriel Mts. are C, not B. Alamitos Bay is D, not E. V 30 may correlate with hydraulic gradient.

10. J. Louie 12/10/2003 No V 30 correlation with active vs. older alluvium; R 2 = 0.2! Los Angeles Transect

11. J. Louie 12/10/2003 Las Vegas route from Cheyenne to Tropicana 1-km-deep basin 3-km-deep basin Supported by DOE-LLNL and IRIS- PASSCAL Shallow Shear-Velocity Transects

12. J. Louie 12/10/2003 Some correlation to faulting, soil type? Las Vegas Transect

13. J. Louie 12/10/2003 No correlation between V 30 and geologic map. Las Vegas Transect

14. J. Louie 12/10/2003 Correlation with clay soils, caliche in Las Vegas? Las Vegas Transect

15. J. Louie 12/10/2003 Shallow section & V 100 hint at stratigraphy, faulting? Las Vegas Transect Fault? Caliche?

16. J. Louie 12/10/2003 A Preliminary Las Vegas Hazard Map Transect V30 values correlated with soil- map units across 4 quadrangles in Las Vegas Valley

17. J. Louie 12/10/2003 Example of public outreach: Discoveries and Breakthroughs Inside Science, news shorts funded by AIP, AGU, etc.Outreach KFSN-TV Fresno, CA KGBT-TV Harlingen, TX KJTV-TV Lubbock, TX KTRK-TV Houston, TX KNBC-TV Burbank, CA KNSD-TV San Diego, CA KQTV-TV St. Joseph, MO KNTV-TV San Francisco, CA KRQE-TV Albuquerque, NM KTSM-TV El Paso, TX KTVN-TV Reno, NV KWQC-TV Davenport, IA KXAS-TV Fort Worth, TX WAGM-TV Presque Isle, ME WTEN-TV Albany, NY WCAU-TV Philadelphia, PA WCMH-TV Columbus, OH WCYB-TV Bristol, VA WEWS-TV Cleveland, OH WFTS-TV Tampa, FL WLUK-TV Green Bay, WI WBBH-TV Fort Myers, FL WHIO-TV Dayton, OH WIS-TV Columbia, SC WJAR-TV Cranston, RI WLBT-TV Jackson, MS WMAQ-TV Chicago,IL WNBC-TV New York, NY WNCN-TV Raleigh, NC KTSM-TV Omaha, NE WPBN-TV Traverse City, MI WSYM-TV Lansing, MI WTVJ-TV Miami, FL WVIT-TV Hartford, CT WVTM-TV Birmingham, AL WXYZ-TV Southfield, MI WJXT-TV Jacksonville, FL WTXL-TV Tallahassee, FL WIVT-TV Binghamton, NY WEVV-TV Evansville, IN WCJB-TV Gainesville, FL WPXI-TV Pittsburgh, PA CHAT-TV Medicine Hat, ALB K. Heineman, NewsProNet, Producers Technology Transfer: Commercial ReMi is now in use by geotechnical consultants and agencies worldwide.