| Magnitude | 5.1 |
| Alert | Strong |
| Depth | 32.0 km |
| Coordinates | 39.016, 143.407 |
| UTC time | 1977-12-23 22:10:36.400 |
Earthquake details
Friday, December 23, 1977 Earthquake
The earthquake hit Japan on Friday, December 23, 1977 at 22:10 UTC with a magnitude of 5.1. The closest known location in the current dataset is Kamaishi (Japan - JP), about 136.0 km away. The epicenter is located at longitude 143.407 and latitude 39.016.
| Location | Ishinomaki |
| Country | Japan (JP) |
| Severity | Strong |
Earthquake map 1977-12-23
Nearby earthquakes
The latest 8 earthquakes within 100 km of this epicenter.
M 6.6
Kesennuma
Japan · 2026-05-15 11:22 UTC
138.3 km
M 6.7
Ōfunato
Japan · 2026-05-15 11:22 UTC
100.7 km
M 4.7
Minami-Sōma
Japan · 2026-05-07 23:31 UTC
230.9 km
M 4.6
Ishinomaki
Japan · 2026-04-12 13:00 UTC
162.5 km
M 5.0
Ishinomaki
Japan · 2026-04-04 10:36 UTC
157.0 km
M 4.3
Ishinomaki
Japan · 2026-04-04 03:16 UTC
159.6 km
M 5.0
Ishinomaki
Japan · 2026-04-02 00:52 UTC
183.0 km
M 4.4
Sendai
Japan · 2026-03-30 19:05 UTC
148.9 km
Stay informed
Earthquake alerts
Create targeted notifications for important seismic activity near the places you follow.