|magnitude = 7.9<ref>{{cite journal|last=Kanamori|first=Hiroo|year=1977|title=The energy release in great earthquakes|journal=J. Geophys. Res.|volume=82|issue=20|pages=2981–2987|doi=10.1029/JB082i020p02981|bibcode=1977JGR....82.2981K|url=https://authors.library.caltech.edu/51386/1/jgr13796.pdf|access-date=2019-05-13|archive-date=2017-08-15|archive-url=https://web.archive.org/web/20170815230756/http://authors.library.caltech.edu/51386/1/jgr13796.pdf|url-status=dead}}</ref> 8.0<ref>{{cite web|last1=Namegaya|first1=Yuichi|last2=Satake|first2=Kenji|last3=Shishikura|first3=Masanobu|year=2011|title=Fault models of the 1703 Genroku and 1923 Taisho Kanto earthquakes inferred from coastal movements in the southern Kanto erea|url=https://www.gsj.jp/data/actfault-eq/h22seika/pdf/namegaya.pdf|access-date=27 September 2015}}</ref> 8.2<ref>{{cite web|url= http://www.bousai.go.jp/kaigirep/chuobou/senmon/shutochokkajishinmodel/pdf/dansoumodel_01.pdf |title=首都直下地震モデル検討会 }} 首都直下のM7クラスの地震及び相模トラフ沿いのM8クラスの地震等の震源断層モデルと震度分布・津波高等に関する報告書</ref> [[Moment magnitude scale|M<sub>w</sub>]] | |magnitude = 7.9<ref>{{cite journal|last=Kanamori|first=Hiroo|year=1977|title=The energy release in great earthquakes|journal=J. Geophys. Res.|volume=82|issue=20|pages=2981–2987|doi=10.1029/JB082i020p02981|bibcode=1977JGR....82.2981K|url=https://authors.library.caltech.edu/51386/1/jgr13796.pdf|access-date=2019-05-13|archive-date=2017-08-15|archive-url=https://web.archive.org/web/20170815230756/http://authors.library.caltech.edu/51386/1/jgr13796.pdf|url-status=dead}}</ref> 8.0<ref>{{cite web|last1=Namegaya|first1=Yuichi|last2=Satake|first2=Kenji|last3=Shishikura|first3=Masanobu|year=2011|title=Fault models of the 1703 Genroku and 1923 Taisho Kanto earthquakes inferred from coastal movements in the southern Kanto erea|url=https://www.gsj.jp/data/actfault-eq/h22seika/pdf/namegaya.pdf|access-date=27 September 2015}}</ref> 8.2<ref>{{cite web|url= http://www.bousai.go.jp/kaigirep/chuobou/senmon/shutochokkajishinmodel/pdf/dansoumodel_01.pdf |title=首都直下地震モデル検討会 }} 首都直下のM7クラスの地震及び相模トラフ沿いのM8クラスの地震等の震源断層モデルと震度分布・津波高等に関する報告書</ref> [[Moment magnitude scale|M<sub>w</sub>]] |