1854 Tōkai earthquake
The 1854 Tōkai earthquake was the first of the Ansei great earthquakes (1854–1855). It occurred at about 09:00 local time on 23 December 1854. It had a magnitude of 8.4 and caused a damaging tsunami. More than 10,000 buildings were destroyed and there were at least 2,000 casualties.
| Local date | December 23, 1854 |
|---|---|
| Local time | 09:00 |
| Magnitude | 8.4 ML |
| Epicenter | 34.0°N 137.8°E |
| Fault | Nankai megathrust |
| Areas affected | Japan, Tōkai region |
| Tsunami | yes |
| Casualties | >2,000 |
It was the first of the three Ansei great earthquakes; the 1854 Ansei-Nankai earthquake of similar size hit southern Honshu the following day.
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