Table 1. Felt Earthquakes through 1961 in the Region from 31š to 38š N and 101š to 111š W with Maximum Intensity VI or Greater and/or Felt Area Greater than 100,000 Sq. Km.



YearDateTimeLocationMax. Int.Felt AreaMg.References
mm-ddUTLat.Long.MM 1931Sq. Km
183031.9110.1IX(10)
186934.1106.9VII(1)
1887Nov-1132.0110.6VII(10)
1888Jul-2531.7110.1VI(10)
1893Sep-0734.7106.6VII(1)
1895Oct-3112:??34.1106.9VI(1)
189734.1106.9VI(1)
1904Sep-1034.1106.9VI(1)
1906Jul-0210:1534.1106.9VI(2)
1906Jul-1212:1534.1106.9VII-VIII105,00 0 (2)
1906Jul-1619:0034.1106.9VIII260,00 0(2)
1906Nov-1512:1534.1106.9VIII260,00 0(2)
1906Dec-1912:??34.1106.9VI(2) (3)
1916Mar-3005:20 31.3110.9VI(10)
1916Dec-1212:4535.6109.1VI181,00 0(1) (10)
1917Mar-2719:5635.3101.2VI(1) (9)
1918May-2811:3035.5106.1VII-VIII31,000 4.5-5.0(4)
1921Apr-0621:0734.9110.2VI(5) (10)
1922Jun-1723:4233.4110.9VI(10)
1925Jul-3012:1735.4101.3V520,00 0 (1) (9)
1935Feb-0504:4835.0106.4VI(1)
1935Feb-2101:2534.5106.8VI(1)
1935Dec-2201:5634.7106.8VI(1)
1936Jun-2003:24 35.8101.3V105,00 0(1)
1937Apr-0812:0035.7109.5VI(10)
1938Sep-1717:2033.3108.5VI42,000 (6)
1938Sep-2005:39 33.3108.5VI(6)
1938Sep-2923:3533.3108.5VI(6)
1938Nov-0216:0033.3108.5VI(6)
1939Jan-2012:1733.3108.5VI(6)
1939Jun-0401:19 33.3108.5VI(6)
1947Nov-0616:5035.0106.4VI(1)
1948Mar-1204:29 36.0102.5VI130,00 0(1) (9)
1949May-2307:22 34.6105.2VI(1)
1950Jan-1700:5335.6109.5VII(1) (10)
1951Jun-2019:37 35.5103.0VI105,00 0 (1) (9)
1955Aug-0306:4038.0107.0VI(1)
1960Jul-2314:1634.4106.9VI(1) (7)
1961Jul-0307:0634.2106.9VI(1) (8)

(1) Coffman et al., 1982
(2) Reid, 1911
(3) Woollard, 1968
(4) Olsen, 1979
(5) Earthquakes of Arizona, 1939
(6) Taggart and Baldwin, 1982
(7) Sanford, 1994
(8) Data on file at New Mexico Tech
(9) Northrop and Sanford, 1972
(10) DuBois et al., 1982