| Magnitude | 5.8 |
| Alert | Strong |
| Depth | 20.0 km |
| Coordinates | 33.018, 142.376 |
| UTC time | 1961-08-15 19:03:56.950 |
Earthquake details
Tuesday, August 15, 1961 Earthquake
The earthquake hit Japan on Tuesday, August 15, 1961 at 19:03 UTC with a magnitude of 5.8. The closest known location in the current dataset is Isumi (Japan - JP), about 306.0 km away. The epicenter is located at longitude 142.376 and latitude 33.018.
| Location | Chiba |
| Country | Japan (JP) |
| Severity | Strong |
Earthquake map 1961-08-15
Closest countries
The 12 closest cities near the epicenter.
| Isumi | 306.0 km |
| Kamogawa | 312.4 km |
| Minamibōsō | 318.3 km |
| Tateyama | 318.6 km |
| Mobara | 329.4 km |
| Hasaki | 333.8 km |
| Ōamishirasato | 334.2 km |
| Ōami | 336.5 km |
| Tōgane | 337.0 km |
| Asahi | 339.7 km |
| Sanmu | 341.7 km |
| Yōkaichiba | 342.5 km |
Nearby earthquakes
The latest 8 earthquakes within 100 km of this epicenter.
M 5.8
Matsudo
Japan · 2026-08-22 17:00 UTC
387.0 km
M 4.4
Kamisu
Japan · 2026-07-17 19:45 UTC
327.5 km
M 4.7
Narita
Japan · 2026-07-16 00:01 UTC
344.7 km
M 4.3
Kamisu
Japan · 2026-07-02 07:17 UTC
340.7 km
M 4.2
Chiba
Japan · 2026-06-26 18:59 UTC
366.8 km
M 4.3
Sakura
Japan · 2026-06-26 04:31 UTC
352.1 km
M 4.5
Asahi
Japan · 2026-06-26 04:00 UTC
322.3 km
M 5.8
Kamisu
Japan · 2026-06-26 03:46 UTC
340.0 km
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