| Magnitude | 5.0 |
| Alert | Strong |
| Depth | 18.0 km |
| Coordinates | 33.700, 142.132 |
| UTC time | 1975-10-04 20:14:54.000 |
Earthquake details
Saturday, October 4, 1975 Earthquake
The earthquake hit Japan on Saturday, October 4, 1975 at 20:14 UTC with a magnitude of 5.0. The closest known location in the current dataset is Isumi (Japan - JP), about 232.7 km away. The epicenter is located at longitude 142.132 and latitude 33.700.
| Location | Chiba |
| Country | Japan (JP) |
| Severity | Strong |
Earthquake map 1975-10-04
Closest countries
The 12 closest cities near the epicenter.
| Isumi | 232.7 km |
| Kamogawa | 242.9 km |
| Minamibōsō | 251.1 km |
| Tateyama | 252.5 km |
| Mobara | 255.4 km |
| Hasaki | 255.6 km |
| Ōamishirasato | 259.3 km |
| Ōami | 261.8 km |
| Tōgane | 261.8 km |
| Asahi | 262.3 km |
| Yōkaichiba | 265.6 km |
| Sanmu | 265.8 km |
Nearby earthquakes
The latest 8 earthquakes within 100 km of this epicenter.
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Matsudo
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Kamisu
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Narita
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M 4.3
Kamisu
Japan · 2026-07-02 07:17 UTC
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M 4.2
Chiba
Japan · 2026-06-26 18:59 UTC
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M 4.3
Sakura
Japan · 2026-06-26 04:31 UTC
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Asahi
Japan · 2026-06-26 04:00 UTC
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M 5.8
Kamisu
Japan · 2026-06-26 03:46 UTC
263.1 km
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