@misc{indiciaee1115abd1569, title = {Earthquake data report, September 1989}, author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey}, year = {1990}, doi = {10.3133/ofr89609a}, url = {https://pubs.usgs.gov/publication/ofr89609A}, note = {Source identifier: ofr89609A} }