Table 1

Oklahoma Earthquake Stress Parameter Estimates

Date (yyyy/mm/dd)Time (hh:mm)MwRNameDepth (km)fc (Hz)Δσ (MPa)
MidMinMax
2011/11/0507:124.70Prague, Oklahoma3.71.30 ± 0.305.482.5010.22
2011/11/0603:535.59Prague, Oklahoma3.00.65 ± 0.1514.826.7527.64
2011/11/0802:464.83Prague, Oklahoma4.01.40 ± 0.4010.733.9122.80
2016/02/1317:075.00Fairview, Oklahoma7.71.30 ± 0.2015.459.3623.74
2016/03/0223:313.75Fairview, Oklahoma7.23.80 ± 1.005.152.0610.37
2016/09/0312:025.55Pawnee, Oklahoma5.40.75 ± 0.1519.8310.1534.27
2016/09/0312:583.30*Pawnee, Oklahoma1.88.00 ± 1.0010.156.8014.45
2016/09/0702:263.14Pawnee, Oklahoma6.97.00 ± 2.003.911.438.32
2015/09/1812:353.99Cushing, Oklahoma0.24.50 ± 0.5019.5813.7526.86
2015/09/2501:163.87Cushing, Oklahoma2.95.20 ± 1.0019.9610.5233.84
2015/10/1022:034.21Cushing, Oklahoma3.32.80 ± 0.5010.095.5916.51
2016/11/0701:444.88Cushing, Oklahoma5.01.60 ± 0.3019.0410.2131.88
2010/10/1314:064.33Slaughterville, Oklahoma13.02.50 ± 0.5010.865.5618.77
2010/11/2422:483.93Arcadia, Oklahoma7.83.00 ± 0.704.722.138.85
2010/12/1201:073.20Bethel Acres, Oklahoma7.63.00 ± 1.004.791.4211.36
[0.380.110.90]
2012/04/0307:343.80Kiawa, Oklahoma5.03.30 ± 0.304.013.015.20
  • * MwR from MbLg.

  • Earthquake in sediments with Vs=1.6  km/s. Bracketed value is for crustal VS=3.5  km/s.