Magnitude                                 
Year Mth Day Time(UTC)       Lat    Long     mb  Ms  Mag  Scale  Mag  Scale  Intensity   Explo Source
1882 11  08  01:30        *  40.90  -106.10                                  IV                WSGS
1882 11  08  12:00           40.90  -106.10                                  Felt              WSGS
1888 04  28  09:30           41.55  -109.30                                  IV                WSGS
1889 01  22                  42.80  -108.70                                  III-IV            WSGS
1889 10  08                  42.65  -104.60                                  IV                WSGS