| Magnitude | 5.5 |
| Alert | Strong |
| Depth | 15.0 km |
| Coordinates | 34.164, 141.773 |
| UTC time | 1933-04-21 20:39:44.550 |
Earthquake details
Friday, April 21, 1933 Earthquake
The earthquake hit Japan on Friday, April 21, 1933 at 20:39 UTC with a magnitude of 5.5. The closest known location in the current dataset is Isumi (Japan - JP), about 172.5 km away. The epicenter is located at longitude 141.773 and latitude 34.164.
| Location | Mobara |
| Country | Japan (JP) |
| Severity | Strong |
Earthquake map 1933-04-21
Closest countries
The 12 closest cities near the epicenter.
| Isumi | 172.5 km |
| Kamogawa | 185.1 km |
| Hasaki | 194.6 km |
| Minamibōsō | 194.8 km |
| Mobara | 194.8 km |
| Tateyama | 197.1 km |
| Ōamishirasato | 198.4 km |
| Tōgane | 200.8 km |
| Asahi | 200.9 km |
| Ōami | 200.9 km |
| Yōkaichiba | 204.2 km |
| Sanmu | 204.6 km |
Nearby earthquakes
The latest 8 earthquakes within 100 km of this epicenter.
M 4.8
Chiba
Japan · 2026-08-14 09:58 UTC
62.7 km
M 4.5
Chiba
Japan · 2026-07-16 16:04 UTC
45.6 km
M 4.3
Chiba
Japan · 2026-05-23 03:34 UTC
49.6 km
M 5.0
Chiba
Japan · 2026-04-16 14:43 UTC
87.0 km
M 4.6
Chiba
Japan · 2026-02-12 19:51 UTC
75.9 km
M 5.1
Chiba
Japan · 2025-12-21 06:58 UTC
67.6 km
M 4.7
Mobara
Japan · 2025-11-04 22:17 UTC
95.9 km
M 4.1
Chiba
Japan · 2025-08-11 09:16 UTC
60.6 km
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