B-46 Colorado Earthquake Data and Interpretation, 1867 to 1985 Download Publication Details Colorado earthquake incidence data and interpretation between 1867 and 1985. 107 pages. 1 plate (1:1,000,000). 98 figures. 3 tables. Digital PDF download. B-46D This publication has been superseded by an updated and revised version: CGS Bulletin B-52 Colorado Earthquake Information, 1867-1996. Citations Kirkham, Robert M., and William P. Rogers. “Bulletin 46 - Colorado Earthquake Data and Interpretations 1867-1985.” Earthquake. Bulletin. Denver, CO: Colorado Geological Survey, Department of Natural Resources, 1985. https://doi.org/10.58783/cgs.b46.fdpq8494. CGS Publications. https://coloradogeologicalsurvey.org/publications/colorado-earthquake-data-interpretation-1867-1985/.