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1946 Nankai earthquake

1946 Nankai earthquake
1946 Nankai earthquake is located in Japan
1946 Nankai earthquake
UTC time1946-12-20 19:19:10
ISC event898698
USGS-ANSSComCat
Local dateDecember 21, 1946 (1946-12-21)
Local time04:19 JST
Magnitude
  • Mw 8.1[1]
  • Ms 8.3 (ISC)
Depth30 km (19 mi)[2]
Epicenter33°00′N 135°36′E / 33.00°N 135.60°E / 33.00; 135.60 [3]
FaultNankai megathrust
Areas affectedJapan
TsunamiYes
CasualtiesAt least 1362 dead, 2600 injured and 100 missing[1]

The 1946 Nankai earthquake (昭和南海地震 Shōwa Nankai jishin) was a great earthquake in Nankaidō, Japan. It occurred on December 21, 1946, at 04:19 JST (December 20, 19:19 UTC).[1] The earthquake measured between 8.1 and 8.4 on the moment magnitude scale, and was felt from Northern Honshū to Kyūshū. It occurred almost two years after the 1944 Tōnankai earthquake, which ruptured the adjacent part of the Nankai megathrust.

  1. ^ a b c "The 1946 Nankaido earthquake". United States Geological Survey. 13 March 2008. Archived from the original on 1 June 2008. Retrieved 2008-06-29.
  2. ^ Cite error: The named reference Kanamori was invoked but never defined (see the help page).
  3. ^ National Geophysical Data Center / World Data Service (NGDC/WDS): NCEI/WDS Global Significant Earthquake Database. NOAA National Centers for Environmental Information. (1972). "Significant Earthquake Information". NOAA National Centers for Environmental Information. doi:10.7289/V5TD9V7K. Retrieved 2024-03-21.

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