| Magnitude | 5.6 |
| Alert | Strong |
| Depth | 46.0 km |
| Coordinates | 36.619, 140.989 |
| UTC time | 1977-12-16 15:10:28.000 |
Earthquake details
Friday, December 16, 1977 Earthquake
The earthquake hit Japan on Friday, December 16, 1977 at 15:10 UTC with a magnitude of 5.6. The closest known location in the current dataset is Kitaibaraki (Japan - JP), about 28.4 km away. The epicenter is located at longitude 140.989 and latitude 36.619.
| Location | Iwaki |
| Country | Japan (JP) |
| Severity | Strong |
Earthquake map 1977-12-16
Closest countries
The 12 closest cities near the epicenter.
| Kitaibaraki | 28.4 km |
| Hitachi | 30.4 km |
| Funaishikawa | 41.4 km |
| Hitachi-ota | 41.9 km |
| Inada | 47.0 km |
| Hitachi-Naka | 47.6 km |
| Katsuta | 48.5 km |
| Iwaki | 48.9 km |
| Hitachiomiya | 52.8 km |
| Mito | 56.8 km |
| Okunoya | 63.4 km |
| Hokota | 67.2 km |
Nearby earthquakes
The latest 8 earthquakes within 100 km of this epicenter.
M 4.2
Hitachi
Japan · 2026-08-07 18:41 UTC
29.9 km
M 4.4
Iwaki
Japan · 2026-07-22 11:11 UTC
87.7 km
M 4.3
Iwaki
Japan · 2026-06-18 22:33 UTC
112.0 km
M 4.3
Shirakawa
Japan · 2026-06-01 15:51 UTC
65.7 km
M 4.2
Hitachi
Japan · 2026-05-24 06:08 UTC
47.3 km
M 4.1
Mito
Japan · 2026-05-22 12:39 UTC
59.6 km
M 4.1
Iwaki
Japan · 2026-04-05 17:28 UTC
120.3 km
M 4.2
Iwaki
Japan · 2026-03-24 14:03 UTC
74.6 km
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