1946 Nankai earthquake
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). 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.
| UTC time | 1946-12-20 19:19:10 |
|---|---|
| ISC event | 898698 |
| USGS-ANSS | ComCat |
| Local date | December 21, 1946 |
| Local time | 04:19 JST |
| Magnitude |
|
| Depth | 30 km (19 mi) |
| Epicenter | 33.00°N 135.60°E |
| Fault | Nankai megathrust |
| Areas affected | Japan |
| Tsunami | Yes |
| Casualties | At least 1362 dead, 2600 injured and 100 missing |
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