@misc{indiciae931ae3e2db47, title = {Earthquake data report, July 1991}, author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey}, year = {1991}, doi = {10.3133/ofr91607a}, url = {https://pubs.usgs.gov/publication/ofr91607A}, note = {Source identifier: ofr91607A} }