NUMBER OF EARTHQUAKES IN EACH OKLAHOMA COUNTY 1977-2005

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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       JL

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