| Magnitude | 6.4 |
| Alert | Severe |
| Depth | 15.0 km |
| Coordinates | 33.381, 142.521 |
| UTC time | 1923-08-12 06:10:10.800 |
Earthquake details
Sunday, August 12, 1923 Earthquake
The earthquake hit Japan on Sunday, August 12, 1923 at 06:10 UTC with a magnitude of 6.4. The closest known location in the current dataset is Isumi (Japan - JP), about 283.2 km away. The epicenter is located at longitude 142.521 and latitude 33.381.
| Location | Chiba |
| Country | Japan (JP) |
| Severity | Severe |
Earthquake map 1923-08-12
Closest countries
The 12 closest cities near the epicenter.
| Isumi | 283.2 km |
| Kamogawa | 293.4 km |
| Minamibōsō | 301.3 km |
| Tateyama | 302.6 km |
| Hasaki | 304.1 km |
| Mobara | 305.9 km |
| Ōamishirasato | 309.6 km |
| Asahi | 311.5 km |
| Tōgane | 312.1 km |
| Ōami | 312.2 km |
| Yōkaichiba | 315.1 km |
| Sanmu | 315.9 km |
Nearby earthquakes
The latest 8 earthquakes within 100 km of this epicenter.
|
M 4.0
Tokyo
Japan · 2026-04-05 23:17 UTC
|
360.4 km |
|
M 4.9
Kashiwa
Japan · 2026-04-01 01:06 UTC
|
382.0 km |
|
M 4.1
Fujisawa
Japan · 2026-03-28 10:36 UTC
|
342.4 km |
|
M 4.4
Isumi
Japan · 2026-02-19 08:24 UTC
|
282.8 km |
|
M 4.1
Ōta
Japan · 2026-02-15 02:52 UTC
|
422.0 km |
|
M 4.3
Ōta
Japan · 2026-02-09 12:27 UTC
|
419.4 km |
|
M 4.2
Saitama
Japan · 2026-02-06 15:58 UTC
|
389.1 km |
|
M 4.5
Sakura
Japan · 2026-02-05 00:19 UTC
|
310.7 km |
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