@misc{indiciae5d7c825785b3, title = {Earthquake data report, February 1991}, author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey}, year = {1991}, doi = {10.3133/ofr91602b}, url = {https://pubs.usgs.gov/publication/ofr91602B}, note = {Source identifier: ofr91602B} }