What is 1923 Great Kantō earthquake?
{{Infobox earthquake |title = 1923 Great Kantō earthquake |timestamp = 1923-09-01 02:58:35 |anss-url = iscgem911526 |isc-event = 911526 |image = |image alt = |imagecaption = |map = |map alt = |image name = |map2 = {{Location map+|Japan|relief=1|width=260|float=right|border=yes|caption=|places= {{Location map~|Japan | lat_deg = 35 | lat_min = 19.6 | lat_sec = | lat_dir = N | lon_deg = 139 | lon_min = 8.3 | lon_sec = | lon_dir = E |mark=Bullseye1.png|marksize=40|position=top}} {{Location map~|Japan|lat=35.7|long=139.715|label=Tokyo|position=right|mark=Green pog.svg}}}} |mapsize = |caption = |local-date = {{Start date|1923|9|1}} |local-time = 11:58:32 [[Japan Standard Time|JST]] ([[UTC+09:00]]) |duration = 48 s<ref>{{Cite journal|last1=Kobayashi|first1=Reiji|last2=Koketsu|first2=Kazuki|year=2005|title=Source process of the 1923 Kanto earthquake inferred from historical geodetic, teleseismic, and strong motion data|journal=Earth, Planets and Space|volume=57|issue=4|pages=261|doi=10.1186/BF03352562|bibcode=2005EP&S...57..261K|s2cid=56376668 |doi-access=free }}</ref> 4 min<ref>{{cite web|last=Panda|first=Rajaram|title=Japan Coping with a National Calamity|url=http://www.idsa.in/idsacomments/JapanCopingwithaNationalCalamity_rpanda_160311|publisher=Institute for Defence Studies and Analyses (IDSA)|location=Delhi|access-date=21 December 2011|archive-date=14 June 2023|archive-url=https://web.archive.org/web/20230614134943/https://www.idsa.in/idsacomments/JapanCopingwithaNationalCalamity_rpanda_160311|url-status=dead}}</ref> |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|archi