@article{oai:repository.dl.itc.u-tokyo.ac.jp:00040988, author = {Omori, F.}, issue = {1}, journal = {Bulletin of the Imperial Earthquake Investigation Committee}, month = {Feb}, note = {application/pdf}, pages = {7--25}, title = {Preliminary Note on the Cause of the San Francisco Earthquake of April 18, 1906}, volume = {1}, year = {1907} }