Earthquake ID:  20 Date: 11/15/1901
Intensity:  VI
Time: 10:00 AM
Earthquake Depth:   (kM)
Magnitude USGS:  
Latitude: 38.8
Magnitude Other:   Longitude: -106.2
Earthquake Information:
Numerous newspapers published accounts of an earthquake felt in and near Buena Vista on November 15, 1901 (Oaks and Kirkham, 1986). It is somewhat difficult to discriminate the felt reports of the November 13 and 14 events from those for the November 15 earthquake. It is our interpretation that the felt reports from Buena Vista and Cottonwood Lake are for a distinct earthquake on November 15 that was felt only in that immediate area. It is possible, but we believe unlikely, that the date of the Buena Vista report is incorrect and that these felt reports resulted from the Utah earthquakes on November 13 and 14. An interesting aspect of this earthquake is that moderate intensities (VI ) are reported for this event in the immediate vicinity of Buena Vista, but that surrounding towns did not report the event. Many residents of Buena Vista ran excitedly into the streets wearing only night clothes, and a large plate glass window was broken. The water in Cottonwood Lake was agitated, and numerous boulders rolled down Mount Princeton and Mount Harvard. Newspapers in Salida described the effects in Buena Vista, but did not report any local effects (Salida Mail, November 19, 1901). Likewise, newspapers in both Leadville and Aspen failed to mention any local manifestations to the earthquake. Such evidence suggests the Buena Vista earthquake may have occurred at a fairly shallow depth, and may have been only magnitude 4.0 to 5.0 or perhaps even smaller.
Location Map: (click on image for full size view)
Location Map for Earthquake ID 20
45 - Hadsel, F.A., 1968, History of earthquake activity in Colorado, in Hollister, J.C., and Weimer, R.J., eds., Geophysical and geological studies of the relationship between the Denver earthquakes and the Rocky Mountain Arsenal well: Colorado School of Mines Quarterly, v. 63, no. 1, p. 57-72.
83 - Oaks, S.D., and Kirkham, R.M., 1986, Results of a search for felt reports for selected Colorado earthquakes: Colorado Geological Survey Information Series 23, 89 p.