World Map › Major Earthquakes Since 1900 › 1946
Historic Earthquake
1946 Nankai Earthquake
20 December 1946 · Honshu, S Coast · Japan
On 20 December 1946 at 19:19 UTC, a magnitude 8.3 earthquake struck Japan (Honshu, S Coast), at a depth of 15 km. It occurred on the Amur Plate, 50 km from its boundary with the Philippine Sea Plate (subduction zone). It killed at least 1,362 people. 11,661 homes were destroyed. It is the 38th most powerful of the earthquakes recorded since 1900.
- Date
- 20 December 1946
- Time
- 19:19 UTC
- Magnitude
- 8.3
- Depth
- 15 km
- Deaths
- 1,362
- Homes Destroyed
- 11,661
- Tsunami
- See the tsunami (6.6 m wave)
- Plate
- Amur Plate
- Country
- Japan
Nearby Major Earthquakes
Other major earthquakes recorded within 300 km.
- 20042004 Kii Peninsula Earthquake · M 7.4
- 20042004 Kii Peninsula Earthquake · M 7.2
- 19451945 Mikawa Earthquake · M 7.12,306 deaths
- 19441944 Tōnankai Earthquake · M 8.11,223 deaths
- 19271927 North Tango Earthquake · M 7.33,022 deaths
- 1910Honshu, S. Of · M 7.4
- 19091909 Anegawa Earthquake · M 6.941 deaths
- 1906Near S Coast of Honshu · M 8.4
Sources: NOAA National Centers for Environmental Information, Global Significant Earthquake Database (doi:10.7289/V5TD9V7K) · Wikidata · Bird (2003), PB2002 · Natural Earth