| Magnitude | 5.8 |
| Alert | Strong |
| Depth | 35.0 km |
| Coordinates | 36.224, 141.967 |
| UTC time | 1931-08-18 05:40:12.580 |
Earthquake details
Tuesday, August 18, 1931 Earthquake
The earthquake hit Japan on Tuesday, August 18, 1931 at 05:40 UTC with a magnitude of 5.8. The closest known location in the current dataset is Hasaki (Japan - JP), about 115.8 km away. The epicenter is located at longitude 141.967 and latitude 36.224.
| Location | Iwaki |
| Country | Japan (JP) |
| Severity | Strong |
Earthquake map 1931-08-18
Closest countries
The 12 closest cities near the epicenter.
| Hasaki | 115.8 km |
| Kashima-shi | 122.4 km |
| Kamisu | 122.6 km |
| Hitachi | 125.2 km |
| Kitaibaraki | 125.7 km |
| Funaishikawa | 128.4 km |
| Katsuta | 129.8 km |
| Hitachi-Naka | 129.9 km |
| Hokota | 130.6 km |
| Asahi | 131.4 km |
| Inada | 132.1 km |
| Iwaki | 133.5 km |
Nearby earthquakes
The latest 8 earthquakes within 100 km of this epicenter.
M 4.7
Iwaki
Japan · 2026-08-15 01:10 UTC
133.3 km
M 4.2
Hitachi
Japan · 2026-08-07 18:41 UTC
127.8 km
M 4.4
Iwaki
Japan · 2026-07-22 11:11 UTC
112.3 km
M 4.3
Iwaki
Japan · 2026-06-18 22:33 UTC
117.9 km
M 4.3
Shirakawa
Japan · 2026-06-01 15:51 UTC
160.2 km
M 4.2
Hitachi
Japan · 2026-05-24 06:08 UTC
142.6 km
M 4.1
Mito
Japan · 2026-05-22 12:39 UTC
145.3 km
M 4.1
Iwaki
Japan · 2026-04-05 17:28 UTC
142.1 km
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