@misc{indiciaebb6e2d0cd3e0, title = {Earthquake data report, September 1993}, author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey}, year = {1993}, doi = {10.3133/ofr93609a}, url = {https://pubs.usgs.gov/publication/ofr93609A}, note = {Source identifier: ofr93609A} }