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North Fork Valley Seismic Network - Third Quarter 2008 <br />and in particular, the curves are very conservative at distances less than 1 km. We are currently <br />developing a model that fits the North Fork Valley data. <br />ACKNOWLEDGMENTS <br />The NFVSN data analysis and evaluation are jointly supported by MCC and BRL. Our thanks to <br />Collin Stewart, BRL Project Manager and Wendell Koontz, MCC Project Manager for their <br />support. Our appreciation to Pete Swanson (NIOSH/CDS) and Dave Wolny (Mesa State <br />College) for their assistance in the operation and maintenance of the network. Our thanks to <br />Melinda Lee for her assistance in the preparation of this report and to Jim Abshire for his review. <br />REFERENCES <br />Banfill, R., 1995, PC-SUDS Utilities, A collection of tools for routine processing of seismic data <br />stored in the seismic unified data system for DOS (PC-SUDS). <br />Johnson, C.E., Bittenbinder, A., Bogaert B., Dietz L., and Kohler W., 1995, EW: A Flexible <br />Approach to Seismic Network Processing: IRIS Newsletter, v. 14, no. 2, p. 1-4. <br />• <br />Koontz, W., 2007, Memorandum on the West Elk Mine B Seam Bounce on November 17, 2007, <br />2 p. <br />McGarr, A. and J.B. Fletcher, 2005, Development of Ground-Motion Prediction Equations <br />Relevant to Shallow Mining-Induced Seismicity in the Train Mountain Area, Emery <br />County, Utah, Bulletin of the Seismological Society of America, v. 95, p 31-47. <br />Swanson, P. and Koontz, W., 2006, Measurement and analysis of mining induced seismic <br />ground motion in the vicinity of the West Elk Coal Mine, Somerset, CO (abstract): <br />Seismological Research Letters, v. 77, no. 2, p. 318. <br />Wolny, D., 2007, personal communication on magnitude uncertainties. <br />Wolny, D., 2008, written communications on magnitudes for third quarter 2008. <br />• <br />UM WAx_wcfs\PROJECT&North Fork-Bowie\Quarterly reports\2008 Q3\Q3_2008_BRL.d0C\0AK 6