Laserfiche WebLink
TABLE OF CONTENTS <br />North Fork Walley Seismic Network - First Quarter 2009 ..........................................................................1 <br />Summary ...................................................................... <br />Introduction .................................................................. <br />Network Operations ..................................................... <br />Data Processing ............................................................ <br />Identification of Events ..................................... <br />Location Methodology ...................................... <br />Magnitude Estimation ....................................... <br />Results .......................................................................... <br />....................... l <br />..................................................... l <br />......................................................1 <br />......................................................2 <br />......................................................2 <br />......................................................3 <br />......................................................4 <br />......... .............................................4 <br /> <br />Seismic Event Locations ..........................................................................................4 <br />Seismic Event Magnitudes .......................................................................................5 <br />Recorded Peak Ground Accelerations .....................................................................5 <br />Acknowledgments ................................................................................................................6 <br />References ............................................................................................................................6 <br />Tables <br />1 Seismograph Stations of the North Fork Valley Seismic Network <br />2 Velocity Model Used in Locating Seismic Events <br />3 Event Locations and Maximum Recorded PGAs <br />Figures <br />1 Seismic Station Locations, Permit Areas, and Mine Location Map <br />2 Relocated Seismicity, 1 October to 31 December 2008 <br />3 PGA Values for Q3 2007 to QI 2009 Shown With McGarr and Fletcher (2005) <br />Attenuation Relationships <br />• <br />• <br />• <br />UM WAx_WCfs\PROJECTS\North Fork-Bowie\Quarterly reports\2009 Q1\Q1_2009_BRL.doc\OAK 1