| Magnitude | 5.0 |
| Alert | Strong |
| Depth | 33.0 km |
| Coordinates | 34.006, 141.691 |
| UTC time | 1984-09-20 23:46:25.170 |
Earthquake details
Thursday, September 20, 1984 Earthquake
The earthquake hit Japan on Thursday, September 20, 1984 at 23:46 UTC with a magnitude of 5.0. The closest known location in the current dataset is Isumi (Japan - JP), about 180.1 km away. The epicenter is located at longitude 141.691 and latitude 34.006.
| Location | Tateyama |
| Country | Japan (JP) |
| Severity | Strong |
Earthquake map 1984-09-20
Closest countries
The 12 closest cities near the epicenter.
| Isumi | 180.1 km |
| Kamogawa | 189.8 km |
| Minamibōsō | 198.0 km |
| Tateyama | 199.6 km |
| Mobara | 203.2 km |
| Ōamishirasato | 207.6 km |
| Hasaki | 207.6 km |
| Ōami | 209.9 km |
| Tōgane | 210.2 km |
| Asahi | 212.8 km |
| Sanmu | 214.8 km |
| Yōkaichiba | 215.5 km |
Nearby earthquakes
The latest 8 earthquakes within 100 km of this epicenter.
|
M 4.0
Tokyo
Japan · 2026-04-05 23:17 UTC
|
256.8 km |
|
M 4.1
Fujisawa
Japan · 2026-03-28 10:36 UTC
|
240.7 km |
|
M 4.4
Tateyama
Japan · 2026-03-22 08:56 UTC
|
145.4 km |
|
M 4.5
Itō
Japan · 2026-03-16 11:37 UTC
|
249.9 km |
|
M 4.5
Itō
Japan · 2026-02-23 22:34 UTC
|
209.7 km |
|
M 4.4
Isumi
Japan · 2026-02-19 08:24 UTC
|
179.2 km |
|
M 4.0
Kisarazu
Japan · 2026-02-10 16:12 UTC
|
134.5 km |
|
M 4.5
Sakura
Japan · 2026-02-05 00:19 UTC
|
209.3 km |
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