| Magnitude | 5.2 |
| Alert | Strong |
| Depth | 40.0 km |
| Coordinates | 34.171, 141.425 |
| UTC time | 1978-05-17 08:52:24.300 |
Earthquake details
Wednesday, May 17, 1978 Earthquake
The earthquake hit Japan on Wednesday, May 17, 1978 at 08:52 UTC with a magnitude of 5.2. The closest known location in the current dataset is Isumi (Japan - JP), about 150.4 km away. The epicenter is located at longitude 141.425 and latitude 34.171.
| Location | Chiba |
| Country | Japan (JP) |
| Severity | Strong |
Earthquake map 1978-05-17
Closest countries
The 12 closest cities near the epicenter.
| Isumi | 150.4 km |
| Kamogawa | 159.2 km |
| Minamibōsō | 167.4 km |
| Tateyama | 169.0 km |
| Mobara | 173.7 km |
| Ōamishirasato | 178.5 km |
| Ōami | 180.8 km |
| Tōgane | 181.4 km |
| Hasaki | 182.1 km |
| Asahi | 186.0 km |
| Sanmu | 186.4 km |
| Yōkaichiba | 188.0 km |
Nearby earthquakes
The latest 8 earthquakes within 100 km of this epicenter.
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Narita
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M 4.3
Kamisu
Japan · 2026-07-02 07:17 UTC
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Japan · 2026-06-26 18:59 UTC
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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
185.8 km
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