LEADER 01317oam 2200373 450 001 9910703686503321 005 20150415123242.0 035 $a(CKB)5470000002432843 035 $a(OCoLC)904719779 035 $a(EXLCZ)995470000002432843 100 $a20150311d1999 ua 0 101 0 $aeng 135 $aurbn||||||||| 181 $2rdacontent 182 $2rdamedia 183 $2rdacarrier 200 00$aOn the modified Mercalli intensities and magnitudes of the 1811/1812 New Madrid, central United States, earthquakes /$fby Susan Hough [and three others] 210 1$a[Reston, Va.?] :$cDepartment of the Interior, U.S. Geological Survey,$d1999. 215 $a1 online resource (46 pages) $cillustrations 225 1 $aOpen-file report ;$v99-565 300 $aTitle from title screen (viewed Mar. 5, 2015). 320 $aIncludes bibliographical references (pages 18-20). 606 $aEarthquakes$zNew Madrid Seismic Zone 607 $aNew Madrid Seismic Zone 615 0$aEarthquakes 700 $aHough$b Susan Elizabeth$f1961-$0770727 712 02$aGeological Survey (U.S.), 801 0$bGPO 801 1$bGPO 801 2$bGPO 906 $aBOOK 912 $a9910703686503321 996 $aOn the modified Mercalli intensities and magnitudes of the 1811$93474967 997 $aUNINA