@misc{indiciaedd01a7dd9740, title = {Earthquake data report, December 1991}, author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey}, year = {1991}, doi = {10.3133/ofr91612a}, url = {https://pubs.usgs.gov/publication/ofr91612A}, note = {Source identifier: ofr91612A} }