OKLAHOMA NUMBER PER COUNTY COUNTY 29 YEARS (10592 days) 1977 through 2005 GARVIN => 318 GRADY => 211 MC_CLAIN => 145 CANADIAN => 102 PONTOTOC => 58 HUGHES => 47 LOVE => 46 JEFFERSON => 41 JOHNSTON => 40 COAL => 39 PITTSBURG => 36 STEPHENS => 34 CARTER => 34 ATOKA => 33 LOGAN => 25 CREEK => 24 SEMINOLE => 23 MAJOR => 23 KINGFISHER => 22 POTTAWATOMIE => 21 OKFUSKEE => 20 MURRAY => 20 MC_INTOSH => 19 CADDO => 19 NOBLE => 18 CLEVELAND => 18 HASKELL => 15 LINCOLN => 14 PUSHMATAHA => 13 GARFIELD => 13 LE_FLORE => 12 DEWEY => 11 CUSTER => 10 ELLIS => 9 COMANCHE => 9 BRYAN => 9 BLAINE => 9 ALFALFA => 9 WOODS => 7 ROGER_MILLS => 7 OKMULGEE => 7 KAY => 7 WASHITA => 6 TULSA => 6 PAYNE => 6 OKLAHOMA => 6 LATIMER => 6 GRANT => 6 CHOCTAW => 6 OSAGE => 5 MC_CURTAIN => 5 KIOWA => 5 HARPER => 5 BECKHAM => 5 BEAVER => 4 WOODWARD => 3 ROGERS => 3 MUSKOGEE => 3 MARSHALL => 3 TILLMAN => 2 TEXAS => 2 SEQUOYAH => 2 PAWNEE => 2 MAYES => 2 HARMON => 2 DELAWARE => 2 COTTON => 2 WAGONER => 1 OTTAWA => 1 GREER => 1 CIMARRON => 1 CHEROKEE => 1 WASHINGTON => 0 NOWATTA => 0 JACKSON => 0 CRAIG => 0 ADAIR => 0 OKLAHOMA TOTAL 1701 72 OF OKLAHOMA'S 77 COUNTIES INCLUDED FROM ONE to 318 EPICENTERS IN 29 YEARS 1977 to 2005. The 29 years includes 10592 days from 1977 JAN 01 (Modified Julian Date 43144) through 2005 DEC 31 (MJD 53735). The arithmetic average was: 58.655 earthquakes per year 1.0 earthquake per 6.227 days OKLAHOMA GEOLOGICAL SURVEY JLOGS HOME