@misc{indiciae7539ec7997cd, title = {Earthquake data report, August 1933}, author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey}, year = {1993}, doi = {10.3133/ofr93608a}, url = {https://pubs.usgs.gov/publication/ofr93608A}, note = {Source identifier: ofr93608A} }